Multiple Choice Use the diagram below to find the value of x. . Divide a side length of the dilated figure by the corresponding side length of the original figure. B = (4, 2), B = (2, 1); a. Graph the image. _____________. Which represents the dilation shown where the black figure is the preimage? Perimeter = 2l + 2w = 2(2) + 2(2) = 8 a. Type below: Algebraic Representations of Dilations How can you describe the effect of a dilation on coordinates using an algebraic representation? C(-2, 4) C'( 2 (- 2), 2 4) C'(4, -8) . meaning that we will multiply every coordinate with \(\frac{3}{2}\). Which transformation in part c will accomplish this? (9, 6), (3, 6), (9, 3), (3, 3) In feet 6.25 4 = 25ft and 3.75 4 = 15 ft, Question 10. Draw Conclusions A figure undergoes a sequence of transformations that include dilations. facial recognition time clock no monthly fee; mower deck spindle replacement b. y = \(\frac{1}{3}\)x + 1 B = (4, 2), B = (2, 1); What are the vertices of the dilated image? Image perimeter: _________, Answer: x = 3 -4/-2 =2; 4/2 = 2 15/5 = 3 mm C(3, 9) C'(3 \(\frac{1}{3}\), 9 \(\frac{1}{3}\)) C'(1, 3) (3) (-4, 0), Question 4. (3, 8) (4, 0) Critical Thinking A triangle has vertices A(-5, -4), B(2, 6), and C(4, -3). b. area = l.w = 2 . The dimension of a new room on a blueprint is now: Type below: In the given expression, we can notice that the x coordinate is multiplied with 0.5 and that the y-coordinate is multiplied with 1.5. (x, y) (y, -x) Type below: (x, y) (\(\frac{1}{2}\)x, \(\frac{1}{2}\)y), Question 6. The Go Math Grade 8 Solution Key Chapter 10 Transformations and Similarity help the students to enhance their math skills. June 5, 2022 Posted by: Category: Uncategorized A(-5, -4) A'(3 (-5), 3 (-4)) A'(-15, -12) (1) C (7.5, 6) _____________, Answer: Worksheets are Algebraic representations of dilations, Correctionkeyb transformations and similarity module 10, Graph the image of the figure using the transformation, 8th grade texas mathematics unpacked content, Lodwlrqv3udfwlfh, Graph the image of the figure using the transformation, Reteach multiple . (-2, 0) The first idea is that we can construct representations of relationships between two sets of quantities and that these representations, which we call functions, have common traits. (x, y) -> (1/3x, 1/3y), Question 8. Triangle XYZ has angles measuring 54 and 29. Answer: _____________, Answer: scale factor = 3, Explanation: d. (x, y) -> (6x, 6y), Explanation: To start, let us determine the scale factor k by dividing the length of one side of the dilated image by the corresponding length of the original image. Problem 2 : The triangle ABC shown on the grid is the pre-image. scale factor of 1.5 The algebric dilation is (x, y) (48x, 48y). 37, 53, and 90, Question 6. Type below: 0 = 2/3 . What is the effect of a negative scale factor? ________ inches A dilation of the square has vertices at (6, 6), (6, 6), (6, 6), and (6, 6). Lesson 2: 20.2 Algebraic Representations of Dilations. _____________, Answer: MNPQ is not a dilation of MNPQ, Explanation: ________. F (3, 3) In the given expression, we can notice that both coordinates changed its sign Considering the fact that positive and negative parts of both axis are spaced 180 apart, we can conclude that the algebraic transformation rotated a figure for 180. a. ratio of y-coordinates = _______ _____________. Type below: Describe the transformations that will transform the image back into the original figure. Type below: a. A dilation of (x, y) (kx, ky) when 0 < k < 1 has what effect on the figure? h2V0Pw/+Q0L)0 Perimeter = 8 units Highlight key terms and topics. After the sequencing of transformations, reflection over the y-axis. Type below: Properties of Dilations Lesson Check Page No. Dilation Geometry Definition Before you learn how to perform dilations, let's quickly review the definition of dilations in math terms. The ratios of the lengths of the corresponding sides are not equal. horizontally shrinks by a factor of 2/3, Question 12. Picture below shows the image of the figure before and after dilation. The sides are proportional. The actual building measures 400 feet long and 320 feet high. Question 4. Scale factor: 2 10.2 Algebraic Representations of Dilations. Answer: G (7.5, 3) Type below: The square is dilated under the dilation (x, y) (0.25x, 0.25y). Scale factor: _________ Justify your answer. Title: Microsoft Word - Document1 Author: lausd_user Created Date: 1/26/2015 2:42:29 PM . What is the scale factor in terms of inches to inches? (-4, 4) Then write them algebraically. endstream endobj 131 0 obj <>stream C(4, -3) C'(3 4, 3 (-3)) C'(12, -9) .. (3) (-2, -2) a. 320, Algebraic Representations of Dilations Page No. Type below: (-1, 1) Then apply the dilation (x, y) (\(\frac{3}{2}\)x, \(\frac{3}{2}\)y) and write the coordinates of the vertices of the image in the second column. b. lesson 10 2 algebraic representations of dilationsmercedes financial services phone numbermercedes financial services phone number Algebraic Representations of Dilations Success for English Learners A dilation changes the size of a figure without changing its shape. Type below: b. The HMH Go Math 8th Grade Chapter 10 Transformations and Similarity Solution Key includes properties of dilations, Algebraic Representations of Dilations, and similar figures. vertically stretches by a factor of 2, Question 12. A rectangle has vertices (6, 4), (2, 4), (6, 2), and (2, 2). (-7, -4) (0, -4) Be the first person to grab Go Math Grade 8 Answer Key Chapter 10 Transformations and Similarity to score good marks in the exam. A dilation can produce a larger figure (an enlargement) or a smaller figure (a reduction). (4, 0) B: Rotate the square 180 around the origin. A(3, 3) A'(3 \(\frac{1}{3}\), 3 \(\frac{1}{3}\)) A'(1, 1) .. (1) _____________, Answer: 2a + a = 8 + 7 2. Question 4. _____________, Answer: LESSON 10-2 Practice and Problem Solving: A/B 1. Type below: The corresponding angles of triangle ABC and triangle ABC are congruent. How can you find the scale factor of a dilation? (x, y) -> (1/3x, 1/3y), Question 8. ADDITIONAL EXAMPLE 1 Graph the image of rectangle JKLM after a dilation with the origin as its center and a scale factor of 2. a dilation produces an image similar to the original figure, Question 10. 5/2 = 2.5 _____________, Question 9. Quadrilateral MNPQ is the same shape but a different size than quadrilateral MNPQ. scale factor = 1/2, Question 19. Type below: 23 times. (5, 5) 3a = 15 Dilate each figure with the origin as the center of dilation. ratio of y-coordinates = 4/2 = 2 (x, y) -> (x, -y) (x, y) -> (-x, y), Question 11. 24/8 = 3 mm e. What are the dimensions of the new room, in inches, on the blueprint? Describe what happens to a figure when the given sequence of transformations is applied to it: (x, y) (-x, y); (x, y) (0.5x, 0.5y); (x, y) (x 2, y + 2) c. Make a conjecture about the relationship of the scale factor to the perimeter of a square and its image. 3/2 A'(-15, -12) h27P0P0P02V0T05U0R0QP0J'A@PE0I8tc ! All the explanations are given by the best online maths experts. The scale factor of the dilation is _______. 325, Algebraic Representations of Dilations Lesson Check Page No. coordinates for B The figure is dilated by a factor of 2, but the orientation of the figure in the coordinate plane is rotated 180, Question 1. (-2, 1) 13.2LESSON Algebraic Representations of Dilations Preimage (x, y) Image (3x, 3y) (2, 2) (6, 6) Math Talk Mathematical Processes Proportionality 8.3.C Use an algebraic representation to explain the effect of a given positive rational scale factor applied to two-dimensional figures on a coordinate plane with the origin as the center of . x = 3 Apply the indicated sequence of transformations to the square. Determine whether one figure is a dilation of the other. d. (15, 10), (5, 10), (15, 5), (5, 5), Answer: The ratio of the lengths of the corresponding sides of triangle ABC and triangle ABC equals 2. Answer: x 2 _____________, Answer: After calculating the coordinates, we can graph every point of the image after dilation and connect them to get the wanted figure. _____________, Answer: A (3, 3) Reflect the drawing over the x-axis a = 5, Question 5. . Worksheets are Lodwlrqv3udfwlfh, Do not edit changes must be made through file info, Correctionkeyb transformations and similarity module 10, Graph the image of the figure using the transformation, Pre algebra, Lesson algebraic representations of transformations 9 4, Translations of shapes, Trainerinstructor notes . _____________, Answer: G (7.5, 3) Triangle UVW has coordinates U(15, 9), V(6, 4.5), and W(18, -3). _____________, Answer: A dilation with center (0, 0) and scale factor k is applied to a polygon. Scale factor: 2 House dimensions: 25ft by 15ft, Question 10. Scale factor = 2 Triangle XYZ has angles measuring 54 and 29. Perimeter = 32 units 325. _____________. Answer: After dilation What is the effect on the figure when k > 1? No; the dilation is not the same reversed, Explanation: -a + 7 = 2a 8 Dilation Geometry Definition: A dilation is a proportional stretch or shrink of an image on the coordinate plane based on a scale factor. 10 x 10 = 7 x 2 = 10 x 9 = 5 x 8 = 10 x 3 = How did you do? (5, 5) Image perimeter: 48, Explanation: rotate 90counterclockwise, Question 4. The scale factor is \(\frac{1}{4}\) What dilation can you apply to the image to return it to the original preimage? MN = 4.5, Length of MN, given M'(3, 4), N'(6, 4). (-6, -1) Displaying all worksheets related to - Algebraic Representations Of Dilations. Translate the image 3 units down and 6 units right and dilate it by a factor of 2 The division process is straightforward. figure B OL@6BxtiJZ7f)^H(pjl4.I`'Fq rm;`$PE\!0P{a!-;}])o1Y-f /PMM$4x*gv|DeF. |_]prV8!Q~~p Since 1 foot = 12 inch, the scale factor is k = \(\frac{12}{\frac{1}{4}}\) = 48, b. Image perimeter: 48, Explanation: Graph the image of XYZ after a dilation with a scale factor of \(\frac{1}{3}\) and the origin as its center. Graph the image of each figure after a dilation with the origin as its center and the given scale factor. rotate 90counterclockwise, Question 4. Type below: _____________, Answer: ________ feet, Question 9. *Click on Open button to open and print to worksheet. Identify the scale factor used in each dilation. Answer: _____________. (x, y) -> (x +5, y-6), Question 3. Write two algebraic representations, one for the dilation to the green square and one for the dilation to the purple square. Mathematics. _____________, Answer: (2, 2) (1, -1) (-4, 4) (x, y) (2.5x, 2.5y) A stage crewmember writes (x, y) (\(\frac{1}{12}\)x, \(\frac{1}{12}\)y) to represent the dilation. Scale factor: _________ Quadrilateral DEFG has sides measuring 16 m, 28 m, 24 m, and 20 m. Quadrilateral DEFG has sides measuring 20 m, 35 m, 30 m, and 25 m. b. (x, y) -> (2.5x, 2.5y) The HMH Go Math 8th Grade Chapter 10 Transformations and Similarity Solution Key includes properties of dilations, Algebraic Representations of Dilations, and similar figures. _____________, Answer: _____________, Explanation: The ratios of the lengths of the corresponding sides are not equal. (3, 2), (1, 2), (3, 1), (1, 1) Answer: Total Meals Sent Learn More. algebraic rule: (x, y) -> (1.5x, 1.5y), Question 3. Describe the transformations that will transform the image back into the original figure. The backdrop scale factor is 1/20, not 1/12, Question 12. b. a = \(\frac{1}{3}\) e. What are the dimensions of the new room, in inches, on the blueprint? 10cm 40 = 400cm There will be no change in their sizes and has no effect in the preimage. 8cm 40 = 320cm Explain. The lengths are 240 cm, 320 cm, and 400 cm, Question 6. Write two algebraic representations, one for the dilation to the green square and one for the dilation to the purple square. a. Length of MN, given M(4.5, 6), N(9, 6). 324, Algebraic Representations of Dilations Page No. _____________. Triangle XYZ has angles measuring 29 and 92. Answer: Type below: b. a = \(\frac{1}{3}\) C: (x, y) (x 5, y 6) perimeter of the image = 12 + 12 + 12 + 12 = 48, Question 20. Answer: (x, y) (kx, ky) C: (x, y) (x 5, y 6) Lesson 13.2 Algebraic Representations of Dilations; Lesson 13.3 Dilations and Measurement; Texas Go Math Grade 8 Module 13 Quiz Answer Key; Texas Go Math Grade 8 Unit 5 Study Guide Review Answer Key. Save or instantly send your ready documents. (0, -4) At least one transformation must be a dilation with a scale factor other than 1, Question 6. coordinates for D (5, -3), Question 5. (-4, -2), Question 12. Type below: Question 9. Then apply the dilation (x, y) (\(\frac{3}{2}\)x, \(\frac{3}{2}\)y) and write the coordinates of the vertices of the image in the second column. \(\frac{-\frac{1}{2}}{-2}=\frac{\frac{1}{2}}{2}=\frac{1}{4}\) What is the effect of a negative scale factor? The vertices of the ditilated image are X'(1, 1), Y'(3, 3) and Z'(1, 3), Texas Go Math Grade 8 Lesson 13.2 Guided Practice Answer Key. Type below: (x, y) (2.5x, 2.5y) After dilation: Test yourself by practicing the problems from Texas Go Math Grade 8 Lesson 13.2 Answer Key Algebraic Representations of Dilations. Question 7. Mike DeVor. Mod 20-2.mp4. Quadrilateral MNPQ has side lengths of 15 mm, 24 mm, 21 mm, and 18 mm. D: (x, y) (\(\frac{1}{2}\)x, \(\frac{1}{2}\)y) D. Sketch the image after the dilation on the coordinate grid. a. endstream endobj 134 0 obj <>stream d. (15, 10), (5, 10), (15, 5), (5, 5), Answer: _____________, Answer: C'((3. Explanation A: Orientation of the figure in the coordinate plane is rotated 180. Communicate Mathematical Ideas Triangle ABC has coordinates A(1, 5), B(-2, 1), and C(-2, 4). translation 2 units left and 2 units up, Question 6. The students can easily learn maths with the Go Math Grade 8 Solution Key. ratio of x-coordinates = 4/2 = 2 R'(8.75, 2.5), The figure is dilated by a scale factor of 0.5 and translated 6 units left and 3 units up. _____________, Question 12. and the ratio of the y-coordinates of corresponding points (x, y) (-x, -y) d. A rectangular room has coordinates Q(2, 2), R(7, 2), S(7, 5), and T(2, 5) on the blueprint. _____________, Answer: letter of the transformation applied. A dilation takes a line not passing through the center of the dilation to a parallel line, and leaves a line passing through the center unchanged. One inch on the blueprint represents how many inches in the actual house? On a computer, Raquel uses polygons and a circle to make a model of the top of London's Big Ben clock . Multiply each coordinate of the vertices of ABC by 2 to find the vertices of the dilated image A'B'C'. The homeowner wants this room to be 25% larger. _____________. Some dilations are enlargements. b. Graph the image of each figure after a dilation with the origin as its center and the given scale factor. Sketch the image of the figure after the dilation. We have provided the Go Math Grade 8 Answer Key Chapter 10 Transformations and Similarity in the pdf format so that you can practice in online and offline mode. (-4, 2) Dilate the image by a factor of 1/4 and reflect it back across the y-axis. Answer: Write the algebraic representation of the dilation shown. Area = ________ square units, Answer: Notes. MN = \(\sqrt{(9-4.5)^{2}+(6-6)^{2}}\) Type below: Multiply each coordinate by the scale . each side of the second figure is 1.25 times the corresponding side of the original figure. Lets find the ratio oft: x-coordinates of corresponding points (1, 1) There must be an even number of dilations and for each dilation applied to the figure, a dilation that has the opposite effect must be applied as well. 1/3x = 1 MN = \(\sqrt{(4.5)^{2}+(0)^{2}}\) Apply the indicated sequence of transformations to the square. Is this the same as translating the graph up 5 units and then dilating by a scale factor of 3? 8th grade. Purple square -> (x, y) -> (1/2x, 1/2y), Question 6. View this Page b. ABC(x,y) * (x,y. A = (-4, 4), A = (-2, 2); 3/2 _____________, Answer: Refer to our Texas Go Math Grade 8 Answer Key Pdf to score good marks in the exams. 715 Module 20 Lesson 2 Algebraic Representation of Dilation. letter of the transformation applied. How can you describe the effect of a dilation on coordinates using an algebraic representation?. (4, 0) Question 2. b. d. The shorter leg of the drawing is currently on the left. Edit. ratio of x-coordinates = 4/2 = 2 Label each image with the Multistep As with geometric figures, graphs can be transformed through translations, reflections, rotations, and dilations. MNOP has vertices at M(4.5, 6), N(9, 6), O(9, 10.5), and P(4.5, 10.5). coordinates for A Therefore, we can conclude that dilation affects the length of line segments by either increasing or decreasing their length. Substituting the value of k When k is greater than 1, the dilation is an enlargement by the scale factor k. Question 5. coordinates for D (2, -1) What are the coordinates of the new room? ratio of x-coordinates = -4/-2 = 2 Complete the table by writing same or changed to compare the image with the original figure in the given transformation. F (3, 3) You can use dilations when drawing or designing, Question 1. A dilation can produce a larger figure or an enlargement or a smaller figure or a reduction. Question 6. x = 3 Options: a = 5, Question 5. 0 = -2x + 6 Answer: You are here: Home 1 / Clearway in the Community 2 / Uncategorised 3 / lesson 10 2 algebraic representations of dilations. C = (-2, -4), C = (-1, -2); MNPQ is not a dilation of MNPQ, Explanation: Triangle XYZ has angles measuring 29 and 92. Type below: Original perimeter: _________ 2/3x = 2 Complete the table by writing same or changed to compare the image with the original figure in the given transformation. Q'(2.5, 2.5), (x, y) (kx, ky) Two triangles, Triangle 1 and Triangle 2, are similar. Answer: (-4, -2) figure C Since it changes the size of a figure, it has no something to do with the changes when it comes to the angles of the image. Which equation does not represent a line with an x-intercept of 3? _____________. _____________, Answer: Critical Thinking A triangle has vertices A(-5, -4), B(2, 6), and C(4, -3). Question 5. (1, -1) (7, 8) Answer: Type below: Scale factor: _________ b. Many students have loved the way of explanation given on Go Math Grade 8 Answer Key on our website. Section 10.1: Properties of Dilations. NFTs Simplified > Uncategorized > lesson 10 2 algebraic representations of dilations. S'(8.75, 6.25), Explain. 320, Algebraic Representations of Dilations Page No. \(\frac{1}{4}\) = \(\frac{1}{4}\) G7 Math Lesson 10.2 Algebraic Representations of Dilations STUDY Flashcards Learn Write Spell Test PLAY Match Gravity algebraic expression Click card to see definition Click again to see term 1/15 Created by weiennlee TEACHER Terms in this set (15) algebraic expression dilation vertex (plural: vertices) (:vertices) Communicate Mathematical Ideas Explain what each of these algebraic transformations does to a figure. $JTdDP~~@ x 62 3099-5574 R. Quintino Bocaiva, 359, Centro - Anpolis/GO . Sketch triangle ABC and ABC for the dilation (x, y) (-2x, 2y). _____________, Answer: Image perimeter: _________, Answer: Describe the image of a dilation with a scale factor of 1. The perimeter of the image is the perimeter of the original figure times the scale factor, Question 1. The figure and its final image are congruent. Type below: Question 5. A crewmember wrote wrong, the dilation is (x, y) (\(\frac{1}{20}\)x, \(\frac{1}{20}\)y). Type below: Communicate Mathematical Ideas Explain what each of these algebraic transformations does to a figure. The triangles have only one pair of congruent angles, Question 2. perimeter of the original square = 4 + 4 + 4 + 4 = 16 Answer: _____________, Answer: Describe how the graph of y = x shown at the right is changed through each of the following transformations. MN = \(\sqrt{(3)^{2}+(0)^{2}}\) (x, y) -> (2x, 2y), Question 9. 0 = -1/3 . hWKo@+{"eA"EmUQF &; q8|y<>&Bad Write two algebraic representations, one for the dilation to the green square and one for the dilation to the purple square. This is a bundle of all first grade Illustrative Math-Friendly Units 1-8. If the scale factor is greater than 1, the image is an enlargement. Perform a dilation on the coordinate plane. A designer creates a drawing of a triangular sign on centimeter grid paper for a new business. A dilation of (x, y) (kx, ky) when 0 < k < 1 has what effect on the figure? (x, y) -> (1.5x, 1.5y) Answer: )ABC All the explanations are given by the best maths experts. Type below: _____________. The blue square is the preimage. A'(-15, -12) 11,201. (0, -4) 2/3x = 2 y = -2x + 6 No; the dilation is not the same reversed, Explanation: A square on the coordinate plane has vertices at (2, 2), (2, 2), (2, 2), and (2, 2). ratio of x-coordinates = 2 a. The vertices of the dilated image are A'(1, 1), B'(3, 1), and C'(1, 3). Is the crew members calculation correct if the painted replica is to cover the entire backdrop? (2, -2) _____________, Answer: Slideshow 9531631 by helencorman Perimeter = ________ units