Identify Scale Factors in Dilations

Front

What is the scale factor in the algebraic representation (x,y) to (2x,2y)?

Back

k=2

Front

What variable represents scale factor in the algebraic representation (x,y) to (kx,ky)?

Back

k

Front

If the scale factor is less than one, the new figure will be:

Back

a reduction

Front

If the scale factor is greater than one, the new figure will be:

Back

an enlargement

Front

Which is an example of a reduction?

Back

k = 1/2

Front

What does a scale factor of 1 mean in dilations?

Back

The figure remains the same size.

Front

What is the effect of a scale factor of 3 on a figure?

Back

The figure is enlarged to three times its original size.

Front

How do you calculate the scale factor between two similar figures?

Back

Divide the length of a side of the new figure by the corresponding side of the original figure.

Front

What happens to the area of a figure when the scale factor is doubled?

Back

The area increases by a factor of 4.

Front

What is the scale factor if a figure is reduced to half its size?

Back

k = 1/2