Question

Find the scale factor that was used to change

the Original to the Scaled Image.
Original 25"
Scaled 5"
A. 5
B. 1/2
C. 1/5
D. 1/25

Answer 1

C) 1/5

Explanation:

original value = 25"

scaled value = 5"

To find the scale factor, find the number that muliplies 25 to become 5:

⇒ 25 × 1/5 = 5

Therefore, the scale factor is 1/5

Answer 2

C. 1/5

Explanation:

Original * scale factor = Scaled

25 * SF = 5

Divide each side by 25

25/25 * SF = 5/25

SF = 1/5