A dilation scales a figure by factor k from a center point. Similar figures have the same shape but different sizes (all lengths scaled by k, angles unchanged).
Grade 8Common Core 8.G.A.4GVerified correct ✓
Worked examples
Dilate the point (-4, -3) about the origin with scale factor 0.5. What is the y-coordinate of the image? Answer: -1.5
Dilate the point (1, -4) about the origin with scale factor 0.5. What is the x-coordinate of the image? Answer: 0.5
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