Question

State whether a dilation with the given scale factor is a reduction or an

enlargement.
3. k = 1.25
5.k=5/4
6.k=0.85

Answer 1

3. enlargement

5. enlargement

6. reduction

Explanation:

You want to know whether the given scale factors for dilation represent an enlargement or a reduction.

Dilation

A dilation is an enlargement if the scale factor is greater than 1. It is a reduction if the scale factor is less than 1.

3. k = 1.25

1.25 > 1, so this is an enlargement

5. k = 5/4

5/4 = 1.25, so this is the same problem as 3. It is an enlargement.

6. k = 0.85

0.85 < 1, so this is a reduction.