Question

Which scale factors produce a contraction under a dilation of the original image?

Select each correct answer.

−2

−1/2

​ 1/2 ​

​​2

SELECT 2 ANSWERS 20 POINTS

Answer 1

-1/2 and 1/2 i checked its right 

Answer 2

Answer: −2 and −1/2.

Explanation:

A dilation is a transformation of a geometric image that is known to change its size but not the shape.

The size of the figure basically depends on the scale factor (k) .

When k >1 , then there would be expansion.

When k<1 , then there would be contraction.

When k=1 , then no change in size.

i.e. For contraction , the scale factor (k) must be negative.

From the given options , the scale factors produce a contraction under a dilation of the original image would be −2 and −1/2.

Hence,the correct answers are : −2 and −1/2.