Question

classify each scale factor as a contraction or an expansion Dragon drop the choices into the box to complete the table

Answer 1

Anything that is multiplied by a number over 1 will get bigger. any other number such as negatives or fractions/decimals will get smaller. 1.25 and 3 are expansions and -2,3/4, and 1/5 are contractions

Answer 2

Answer: Contraction = $\dfrac{3}{4},\ \dfrac{1}{5}$

Expansion = 1.25, -3, -2

Step-by-step explanation:

Let k be the scale factor .

Expansion : |k|>1

Contraction : 0<|k|<1

Let's check the given scale factors :

1.25> 1, then this scale factor is an expansion.

3> 1, then this scale factor is an expansion.

|-2|=2>1, then this scale factor is an expansion.

$\dfrac{3}{4}=0.75$

& 0<0.75<1 , thus $\dfrac{3}{4}$ is an contraction.

$\dfrac{1}{5}=0.2$

& 0<0.2<1 , thus $\dfrac{1}{5}$ is an contraction.