Question

Octagon ABCDEFGH and its dilation, octagon A'B'C'D'E'F'G'H', are shown on the coordinate plane below.

Answer 1

If the center of dilation is at the origin, by what scale factor was octagon ABCDEFGH dilated?

one half

one quarter

2

4

Answer 2

Look at the line segment AB.
The original distance from the origin to the midpoint of AB located at (2,0) is 2.
The distance to the dilated octagon is 8. Since the distance quadrupled, the scale factor is 4.

Answer 3

thankssssss @BTaylor

Answer 4

yw