Question

Answer the question below. Type your response in the space provided.

Polygon ABCD is dilated by a scale factor of 2 with the center of dilation at the origin to create polygon A′B′C′D′. If the endpoints of AB are located at (0, -7) and (8, 8), what is the length of A'B? Use the distance formula to help you decide:


d= (x2 -x1)2 + (y2 - y1)2

Answer 1

A'B'= 34 units long.

Explanation:

The length A'B' will be 2 times the length of AB.

AD = sqrt( (8-0)^2 + (8- -7)^2 )

= sqrt 289

= 17

So A'B' = 34 .