Question

A rectangle that is 2 inches by 3 inches has heen scaled by a factor of 7.

1. What are thr side lengths of the scaled copy?

2. Suppose you want to scale the copy back to its original size. What scale factor should you use?

Answer 1

1. 14 inches and 21 inches

2.

`(1)/(7)`

Explanation:

1.Since the rectangle has been increased by a factor of 7. Therefore

`2 * 7 = 14 \\ 3 * 7 = 21`

2. As you have increased it by a factor of 7. To reduce it, multiply by a factor of

`(1)/(7)`