Question

Sometimes a dilation is an enlargement, and sometimes it is a reduction. Explain what types of numbers for scale factors causes each.

Answer 1

Answer: If the scale factor is greater than 1 then the image is an enlargement .

If the scale factor is smaller than 1 then the image is an reduction.

Step-by-step explanation:

A dilation a transformation that changes the size of the figure in certain ways by using scale factor .

It stretches or shrinks the actual figure. It produces similar figures.

• If the scale factor is greater than 1 then the image is an enlargement .
• If the scale factor is smaller than 1 then the image is an reduction.
• If the scale factor is equals to 1 then the image is congruent.

Answer 2

If your scale factor has absolute value greater than 1, the dilation is an enlargement. 
If your scale factor has abs value less than 1, the dilation is a reduction. 
If the scale factor is equal to 1, the image is congruent to the preimage.