Question

What is the scale factor when △RST is dilated to △R'S'T'? What is the value of x?

A. Scale factor 0.75, x = 8
B. Scale factor 0.75, x = 4.5
C. Scale factor 1.3, x = 8
D. Scale factor 1.3, x = 4.5

Answer 1

6 / 4.5 = x / 6
x = 6* 6  / 4.5
x = 36/4.5
x = 8

SF = 4.5  / 6 = 0.75

answer
A. Scale factor 0.75, x = 8