Question

Pint D is located at (15,30), what are the new coordinates if the point is dilated by 1/3?

A) 15,30

B) 45,90

C) 3,10

D) 5,10

Answer 1

Answer: D) (5, 10)

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Step-by-step explanation:

Multiply each coordinate by the scale factor

1/3 * 15 = 15/3 = 5

1/3 * 30 = 30/3 = 10

The point (15, 30) dilates to (5, 10)

This trick only works if the center of dilation is the origin.