6-43. INVESTIGATING DILATIONS
The students in Ms. Stanley’s class were studying what happens to the graph of a shape when both coordinates are multiplied by the same number. They came up with these questions:
“What happens when each coordinate is multiplied by one half?”
“What changes when the coordinates are multiplied by 1?”
“What happens when both of the coordinates are multiplied by −1?”
“What happens when the coordinates are multiplied by −2?”
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a. Use the shape at right to investigate the questions above. Use graph paper to make the dilations.
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b. How did the figure change in each of the investigations? Compare the side lengths, the angles, and the line relationships. Explain what your team learned about the three questions you investigated.
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The first point needs to be rewritten at the end so that the last point will connect to the first point. Click the arrow to add points! Click the folder to hide/show.
