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Grade 8 HMH Go Math - Answer Keys
Chapter 9:Transformations and Congruence; Lesson 4: Algebraic Representations of Transformations
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Guided Practice
Question 1
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Triangle XYZ has vertices X(-3, -2), Y(-1, 0), and Z(1, -6). Find the vertices of triangle X′Y′Z′ after a translation of 6 units to the right. Then graph the triangle and its image.
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Question 2
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Describe what happens to the x- and y-coordinates after a point is reflected across the x-axis.
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Question 3
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Use the rule (x, y) → (y, -x) to graph the image of the triangle at right. Then describe the transformation.
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ESSENTIAL QUESTION CHECK-IN
Question 4
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How do the x- and y-coordinates change when a figure is translated right a units and down b units?
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