Question

Classify each scale factor as a contraction or an expansion. Drag and drop the choices into the boxes to complete the table.

Answer 1

The correct answers are:

3/2  - expansion; 1/4  - contraction; 4 - expansion;  0.8  - contraction; -3 - expansion.

Explanation:

A scale factor larger than 1 would be an expansion.  The factors we have listed that are larger than 1 are 3/2 and 4.

A scale factor between 0 and 1 would be a contraction.  The factors we have listed that are between 0 and 1 are 0.8 and 1/4.

A negative scale factor will result in a larger, inverted figure.  This means the scale factor of -3 will be an expansion.

Answer 2

Contractions are dilations less than 1 but more than 0, and Expansions are dilations more than 1. 

3/2 : Expansion
1/4 : Contraction
4 : Expansion
0.8 : Contraction
-3 : Expansion

These should be the right answers.