endstream endobj 136 0 obj <>stream (-2, 1) So, the scale factor is \(\frac{1}{20}\), and algebric rule of dilation is (x, y) (\(\frac{1}{20}\)x, \(\frac{1}{20}\)y) Explain. ________. 0. Draw Conclusions A figure undergoes a sequence of transformations that include dilations. (-4, -2), Question 12. Identify the sequence of transformations that will reflect a figure over the x-axis and then dilate it by a scale factor of 3. Each coordinate of Triangle UVW is 3/4 times the corresponding coordinate of Triangle UVW. Critical Thinking Explain how you can find the center of dilation of a triangle and its dilation. A (3, 3) How would a dilation with scale factor 1 affect the preimage? 10cm 40 = 400cm If the center of dilation is the origin and the scale factor is 3, graph the dilated image P'Q'R'. a. Multistep As with geometric figures, graphs can be transformed through translations, reflections, rotations, and dilations. ratio of y-coordinates = ____________, Answer: x + 1 scale factor = 1/2, Question 19. 5/2 = 2.5 D: (x, y) (\(\frac{1}{2}\)x, \(\frac{1}{2}\)y) perimeter of the image = 12 + 12 + 12 + 12 = 48, Question 20. Scale factor = 2 Original perimeter: 24 Type below: a dilation produces an image similar to the original figure, Question 10. Write the coordinates of the vertices of the preimage in the first column of the table. c. a reflection across the y-axis If the scale factor k is between 0 and 1 the image is a reduction. What is the scale factor for the dilation? d. (x, y) -> (x, -y); (x, y) -> (3x, 3y), Answer: ratio of x-coordinates = 2 by cfelg. (x, y) (y, -x) Each coordinate of Triangle UVW is 3/4 times the corresponding coordinate of Triangle UVW. Students use algebraic representations of dilations worksheet is a grid units. Question 5. Worksheets are Middle school math series course 2, Chapter 7, Algebraic representations of dilations, Algebraic representations of dilations, Conjectures. For example, if the scale factor is k, the algebraic representation of the dilation is ratio of y-coordinates = _______ Answer: -6/-3 =2; 6/3 = 2 Some dilations are reductions. Explain your reasoning. (x, y) -> (1/4x, 1/4y) The grid shows a diamond-shaped preimage. Communicate Mathematical Ideas Explain what each of these algebraic transformations does to a figure. figure D 326, Similar Figures Lesson Check Page No. area = l.w = 2 . B(-2, 1) B'( 2 ( 2), 2 1) B'(4, -2) .. (2) The blueprint is the preimage and the house is the dilated image. No; the dilation is not the same reversed, Explanation: c. a = 5 Options: (3, 2), (1, 2), (3, 1), (1, 1) Explanation A: (x, y) (0.5x, 1.5y) For each pair of corresponding vertices, find the ratio of the x-coordinates and the ratio of the y-coordinates. A. Mike DeVor. Dilate the image by a scale factor of 1/3 and reflect it back across the x-axis. How can you use dilations to solve real-world problems? If you found any of these problems to be difficult, select the times table you are struggling with from the list of Related Lessons in the right-hand sidebar, and go back to review those multiples before moving forward. 2), (3.6)) -> B'(6, 18) Page 334: Mixed Review. a = 5, Question 5. 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. Dilate the image by a scale factor of 1/3 and reflect it back across the x-axis. The sides are proportional. b. Question 4. Some dilations are enlargements. ratio of y-coordinates = -4/-2 = 2, Question 2. (-4, -2) Substituting the value of k Miultiply each coordinate of the vertices of ABC by 3 to find the vertices of the dilated image. rotate 90counterclockwise, Question 4. _____________. -a + 7 = 2a 8 ratio of x-coordinates = -2/-1 = 2 Section 10.2: Algebraic Representation of Dilations. each side of the second figure is 1.25 times the corresponding side of the original figure. A dilation of the square has vertices at (6, 6), (6, 6), (6, 6), and (6, 6). Yes; Quadrilateral DEFG is a dilation of quadrilateral DEFG. (x, y) -> (x, -y); (x, y) -> (3x, 3y), Question 4. Critical Thinking MNOP has vertices at M(3, 4), N(6, 4), O(6, 7), and P(3, 7). e. (x, y) (0.5x, 1.5y) A square on the coordinate plane has vertices at (3, 3), (3, 3), (3, 3), and (3, 3). Explanation: Type below: d. A rectangular room has coordinates Q(2, 2), R(7, 2), S(7, 5), and T(2, 5) on the blueprint. Area = 4 square units, Explanation: The stage crewmembers calculation is incorrect. _____________, Answer: MNPQ is not a dilation of MNPQ, Explanation: Type below: 5/2 = 2.5 The backdrop scale factor is 1/20, not 1/12, Question 12. The ratio of the lengths of the corresponding sides of triangle ABC and triangle ABC equals _______. Communicate Mathematical Ideas Triangle ABC has coordinates A(1, 5), B(-2, 1), and C(-2, 4). _____________, Answer: x + 1 B = (4, 2), B = (2, 1); lesson 10 2 algebraic representations of dilations. (1, -1) _____________, Answer: (0, -6) 10.2 Algebraic Representations of Dilations. _____________. Scale factor: _________ (-4, 0), Question 4. c. The drawing has the hypotenuse on the bottom. Type below: a. Classify each as such and justify your reasoning. (0, 4) _____________, Answer: x = 2 . The stage crewmembers calculation is incorrect. perimeter of the image = 12 + 12 + 12 + 12 = 48, Question 20. 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. _____________, Answer: Echocardiography technique, The center of dilation is the origin and (x, y) (3x, 3y). Communicate Mathematical Ideas Triangle ABC has coordinates A(1, 5), B(-2, 1), and C(-2, 4). Type below: Type below: 0 = 3x 1 10.2 Independent Practice - Algebraic Representations of Dilations - Page No. b. 3a = 15 In feet 6.25 4 = 25ft and 3.75 4 = 15 ft, Question 10. (-3, -4) Type below: Learning is not only important but understanding the concepts is also important for the students to enhance their skills. Describe the transformations that will transform the image back into the original figure. Graph the image of the figure using the transformation given. What are the coordinates of the new room? Time Squared Activity: Each participant gets 3 pages with 24 squares representing the hours in a day. Type below: Answer: a. a dilation by a scale factor of 4 c. Write the algebraic representation of the dilation from the blueprint to the house. _____________, Question 12. b. Test whether your answers are right or wrong with the help of the review test solutions. Mod 20-2.mp4. e. (x, y) (0.5x, 1.5y) d. (x, y) (\(\frac{2}{3}\)x, y) C: (x, y) (x 5, y 6) ________. algebraic rule: (x, y) -> (1/3x, 1/3y), Question 4. scale factor of \(\frac{1}{3}\) Answer: Critical Thinking A triangle has vertices A(-5, -4), B(2, 6), and C(4, -3). Try keep it short so that it is easy for people to scan your page. %aa2,GGi.O'mUz,gp]'rj} (x, y) ( x, -y) Question 4. Answer: 20.3 Similar Figures. (x, y) -> (2x, 2y), Question 9. Type below: (x, y) -> (1.5x, 1.5y) e. (x, y) (0.5x, 1.5y) What is Dilation? Options: %PDF-1.6 % Determine whether one figure is a dilation of the other. Type below: Reflect the drawing over the x-axis OL@6BxtiJZ7f)^H(pjl4.I`'Fq rm;`$PE\!0P{a!-;}])o1Y-f /PMM$4x*gv|DeF. |_]prV8!Q~~p Page 335: Study Guide Review: Module 9. Type below: (show solution) FOCUS ON HIGHER ORDER THINKING Question 11 (request help) Displaying all worksheets related to - Lesson Algebraic Representation Of Dilations 102. Type below: Notes. ADDITIONAL EXAMPLE 1 Graph the image of rectangle JKLM after a dilation with the origin as its center and a scale factor of 2. (x, y) (2.5x, 2.5y) Answer: Dilation Geometry Definition: A dilation is a proportional stretch or shrink of an image on the coordinate plane based on a scale factor. Original perimeter: 24 scale factor = 3, Explanation: original coordinates c. (x, y) -> (3x, 3y) y = 2/3 . x = 3 Many students have loved the way of explanation given on Go Math Grade 8 Answer Key on our website. All the explanations are given by the best online maths experts. I (3, 6) _____________, Answer: Image perimeter: _________, Answer: _____________, Answer: _____________, Answer: 10.2 Algebraic Representations of Dilations 8th grade Played 0 times Mathematics 4 hours ago by hhudson_96017 0 Save Edit Live modes Start a live quiz Asynchronous learning Assign homework 10 questions Preview Show answers Question 1 180 seconds Q. Dilate the figure by a scale factor of 3 with the origin as the center of dilation. Sketch the image of the figure after the dilation. Explanation: Type below: Type below: How does multiplying a constant by the x variable of a function affect its graphical representation? _____________. Type below: MN = \(\sqrt{(3)^{2}+(0)^{2}}\) Cursos focados em mquinas pesadas. Type below: 2 = 4. Multiply each coordinate of the vertices of ABC by 3 to find the vertices of the dilated image. Critical Thinking Explain how you can find the center of dilation of a triangle and its dilation. (x, y) -> (1/3x, 1/3y), Question 8. Displaying all worksheets related to - Algebraic Representation Of Dialation. (-4, 4) letter of the transformation applied. Answer: _____________, Explanation: y = 3x 1 Coordinates after dilation coordinates for A Type below: (0, 1) Perform a dilation on the coordinate plane. ratio of y-coordinates = _______ Go Math Grade 5 Answer Key Pdf | Go Math 5th Grade Answer Key Pdf, McGraw Hill Math Grade 8 Lesson 21.4 Answer Key Symmetry and Transformations, McGraw Hill Math Grade 8 Lesson 21.3 Answer Key Circles, McGraw Hill Math Grade 8 Lesson 21.2 Answer Key Polygons, McGraw Hill Math Grade 8 Lesson 21.1 Answer Key Quadrilaterals, McGraw Hill Math Grade 8 Lesson 20.3 Answer Key Right Triangles and Pythagorean Theorem, McGraw Hill Math Grade 8 Lesson 18.2 Answer Key Line Segments and Rays, McGraw Hill Math Grade 8 Lesson 20.2 Answer Key Triangles: Congruent and Similar, McGraw Hill Math Grade 8 Lesson 20.1 Answer Key Triangles: Acute, Right, Obtuse, Equilateral, Isosceles, and Scalene, McGraw Hill Math Grade 8 Lesson 2.2 Answer Key Problem Solving, McGraw Hill Math Grade 8 Lesson 2.1 Answer Key Multiplying and Dividing Whole Numbers. _____________, Answer: The square is dilated under the dilation (x, y) (0.25x, 0.25y). Which equation does not represent a line with an x-intercept of 3? G(5, 2) G'(5 1.5, 2 1.5) G'(7.5, 3) (2) _____________. 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. _____________, Answer: Dilate each figure with the origin as the center of dilation. scale factor = 3, Explanation: So, to learn maths in the best way, you must refer to Go Math Grade 8 Answer Key. (-6, 1), Question 13. ABC(x,y) * (x,y. Type below: The Organic Chemistry Tutor. Question 7. C(4, -3) C'(3 4, 3 (-3)) C'(12, -9) .. (3) (2, -2) Describe how the graph of y = x shown at the right is changed through each of the following transformations. Explain. Purple square -> (x, y) -> (1/2x, 1/2y), Question 6. Type below: _____________, Answer: coordinates for B 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 Texas Go Math Grade 8 Teacher Edition Answer Key Unit 6 Statistics and Samples Module 14 Scatter Plots (7, 8) Triangle RST has angles measuring 38 and 75. 2x = 6 The best learning comes with the best learning guide. coordinates for C Sketch triangle ABC and ABC for the dilation (x, y) (-2x, -2y). The figure is reflected across the x-axis and dilated by a scale factor of 3. Area = 64 square units, Explanation: c. Make a conjecture about the relationship of the scale factor to the perimeter of a square and its image. e. What are the dimensions of the new room, in inches, on the blueprint? (x, y) -> (1/5x, 1/5y), Question 10. Rectangle FGHI(x, y) (1.5x, 1.5y) (-6, -1) 0 = -1/3 . (-5, 0) c. a = 5 What is the algebraic representation of this dilation? _____________, Answer: (-4, 2) 8cm 40 = 320cm (-3, -4) On a computer, Raquel uses polygons and a circle to make a model of the top of London's Big Ben clock . Scale factor = 2 Type below: _____ Answer: Green square -> (x, y) -> (2x, 2y) )ABC ratio of y-coordinates = ____________, Answer: You are here: Home 1 / Clearway in the Community 2 / Uncategorised 3 / lesson 10 2 algebraic representations of dilations. _____________, Answer: ALGEBRAIC REPRESENTATIONS OF DILATIONS When a dilation in the coordinate plane has the origin as the center of dilation, we can find points on the dilated image by multiplying the x and y coordinates of the original figure by the scale factor. 10 x 10 = 7 x 2 = 10 x 9 = 5 x 8 = 10 x 3 = How did you do? (3, 4) 6cm 40 = 240cm Eureka Math Algebra 1 Module 2 Lesson 1 Answer Key; Eureka Math Algebra 1 Module 2 Lesson 2 Answer Key; Eureka Math Algebra 1 Module 2 Lesson 3 Answer Key . Make a Conjecture Perimeter = ________ units (-4, 3) > ~ y o 1/3x = 1 (-5, 0) Yes; Quadrilateral DEFG is a dilation of quadrilateral DEFG. The center of dilation is the origin and (x, y) (3x, 3y). c. y = \(\frac{2}{3}\)x 2 _____________. h2U0P62 24Ey%!E B'((3. 1. (-4, 2) Answer: Unit 9 Review. 0 = -2x + 6 (-4, 2) Depending on the scale factor, dilation may increase or decrease the starting object. _____________, Answer: Algebraic Representations of Dilations You dilate a figure using the origin as the center of dilation. The figures are similar is they are the same shape but different size SO one is a dilation of the other, Question 11. Which transformation in part c will accomplish this? d. The shorter leg of the drawing is currently on the left. (x, y) (0.8x, 0.8y) The center of dilation is the origin. Type below: Answer: What are the coordinates? _____________, Explanation: _____________, Answer: A = (-4, 4), A = (-2, 2); Triangle XYZ has angles measuring 54 and 29. The TEKS targeted in these notes are: 8.10(A) generalize the properties of orientation and congruence of rotations, reflections, translations, and dilations of two dimensional shapes on a coordinate plane 8.10(B) differentiate between transformations that preserve congruence and those that do not 8.10(C) explain the effect of . length |QR| = |8.75 2.5| = 6.25 inch x = 2 . 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) The blue square ABCD is the preimage. d. What are the perimeter and area of the image? Also, get the solutions to the review test on our Go Math Grade 8 Answer Key. The scale factor is \(\frac{1}{4}\) Firstly, we will write the coordinates of the vertices of the preimage. (9, 6), (3, 6), (9, 3), (3, 3) The dilation should be centered at 9, negative 9, and have a scale factor of 3. Given M(4.5, 6), N(9, 6), 0(9, 10.5), P(4.5, 10.5) and M'(3, 4), N'(6, 4), O'(6, 7), M(3, 7) center at the origin, Let us represent the dilation algebraically. _____________, Answer: The lengths are 240 cm, 320 cm, and 400 cm, Question 6. ratio of x-coordinates = _______ Type below: _____________. The coordinates of the vertices of the original image are multiplied by 2 for the green square. The ratios of the lengths of the corresponding sides are not equal. Refer to our Texas Go Math Grade 8 Answer Key Pdf to score good marks in the exams. The sides are proportional. _____________, Answer: Answer: Type below: h2V0Pw/+Q0L)0 Answer: H(5, 4) H'(5 1.5, 4 1.5) H'(7.5, 6) (4) d. (x, y) -> (6x, 6y), Explanation: Type below: vertically stretches by a factor of 2, Question 12. Type below: AB/AB = 6/2 = 3 For scale factor k, the algebraic representation of the dilation is (x, y) (kx, ky). _____________, Answer: ratio of y-coordinates = 2, Explanation: In this unit we review the basic concept of a function and emphasize multiple representations of these foundational tools. _____________, Answer: c. (12, 8), (4, 8), (12, 4), (4, 4) This standard connects the work done with algebraic functions in grade 8 and Algebra I to geometric functions. Therefore, we can conclude that dilation affects the length of line segments by either increasing or decreasing their length. (2x, 2y) 5. Answer: (-2, 0) 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. Triangle XYZ has angles measuring 29 and 92. A = (-4, 4), A = (-2, 2); Worksheets are Algebraic representations of dilations, Correctionkeyb transformations and similarity module 10, Lesson algebraic representations of transformations 9 4, Do not edit changes must be made through file info, Pre algebra, Graph the image of the figure using the transformation, Ixl skill alignment, Unit . x 2 Two triangles, Triangle 1 and Triangle 2, are similar. Rotate the drawing 180 around the origin. scale factor of \(\frac{1}{3}\) Justify Reasoning The graph of the line y = x is dilated by a scale factor of 3 and then translated up 5 units. (Example 1). Explanation: BD/BD = 6/2 = 3 -6/-3 =2; 6/3 = 2 a. rotate 90counterclockwise, Question 4. 77% average accuracy. The homeowner wants this room to be 25% larger. Answer: If the scale factor is greater than 1, the image is an enlargement.
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