Math Practice 101
Homework Explained - Math Practice 101

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Grade 8 McGraw Hill Glencoe - Answer Keys


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  • Question 6 (request help)

    Model with Mathematics In each part of the graphic organizer, sketch an image of pentagon MNOPQ after a dilation within the given parameters.
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  H.O.T. Problems Higher Order Thinking  

  • Question 7 (request help)

    Make a Conjecture A figure has a vertex at the point (-4, -6). The figure is dilated with the center at the origin with a scale factor of 5. The resulting image is then dilated with a scale factor of \(\cfrac{3}{5}\).

    a. What are the coordinates of the vertex in the final image?
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  • Question 7 (request help)

    b. How do they compare with those of the original image?
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  • Question 7 (request help)

    c. Can you predict the scale factor of a compound dilation? Explain.
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  • Question 8 (request help)

    Persevere with Problems The coordinates of two triangles are shown in the table. Is ΔWXY a dilation of ΔABC? Explain.
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  • Question 9 (request help)

    Persevere with Problems The algebraic representation of a dilation is (x, y) → \((\cfrac{1}{\text{a}}\text{x}, \cfrac{1}{\text{a}}\text{y})\). If the dilation is an enlargement, give three possible values of a.
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