Question

What is the scale factor, if Q(-5, 5), R(-10, 0), S(-15, -5) and T(-10, 20) are dilated to Q'(-2, 2), R'(-4, 0), S'(-6, -2) and T'(-4, 8)?

Answer 1

See

R(-10,0) is Translated to R'(-4,0)

Find scale factor by dividing x values

Scale factor

• -4/-10
• 2/5

Answer 2

2/5

Explanation:

Q(-5, 5) ==> Q'(-2, 2)

s = xQ'/xQ = -2/-5 = 2/5