Question

Which types of dilation are the given scale factors?

Select Expansion or Contraction to correctly describe the type of dilation for each given scale factor.

Answer 1

Any negative number is going to be a contraction.

expansion= bigger dilation 
contraction= smaller dilation

Let's use the number 2, for example, to help us solve.

2*-4= -8

-8 is less than -4 since the bigger a negative number something is, the smaller in value it has.

It is a contraction.

2*2.5= 5

5 is bigger than 2. 

It is an expansion. 

2*2/3= 1 1/3

2 is bigger than 1 1/3.

This is a contraction. 

2*-.75= -1.5

2 is bigger than -1.5.

This is a contraction. 

I hope this helps!
~kaiker