Question

1. an image that is 6 inches wide on a transparency is 18 inches wide on a screen. what is the scale factor? 9 6 18 3

Explanation:

Step1: Recall the formula for scale factor

Scale factor = $\frac{\text{Image on screen}}{\text{Image on transparency}}$

Step2: Substitute the given values

Given image on transparency = $6$ inches and image on screen = $18$ inches.
Scale factor = $\frac{18}{6}$

Step3: Simplify the fraction

$\frac{18}{6}=3$

Answer:

3