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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.
Scale Factor Expansion Contraction
−4
2.5
2/3
−3/4

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Answer:

−4  is an expansion; 2.5  is an expansion; 2/3  is a contraction; and −3/4 is a contraction.

Step-by-step explanation:

In a dilation, a scale factor greater than 1 or less than -1 is an expansion.  It will make the figure larger.  This means that -4 is an expansion, since it is less than -1, and 2.5 is an expansion, since it is greater than 1.

A scale factor that is greater than -1 but less than 1 will be a contraction.  It will make the figure smaller.  This means that 2/3 is an expansion, since it is less than 1, and -3/4 is a contraction, since it is greater than -1.

shristiparmar1221

This question is based on dilation .Therefore, the scale factor -4 and 2.5 are for expansion of figure. And, [tex]\frac{2}{3}[/tex] and [tex]\frac{-3}{4}[/tex]  are for the contraction of figure.

In this question, we have to select the scale factor of dilation for contraction and expansion.

As we know that,

In a dilation, a scale factor is greater than 1 or less than -1 cause an expansion.  It will make the figure larger.

That  means, -4 is an expansion, since it is less than -1,

And 2.5 is an expansion, since it is greater than 1.

A scale factor that is greater than -1 but less than 1 cause contraction of figure.  It will make the figure smaller.  

This means that,

[tex]\frac{2}{3}[/tex]  is an expansion, since it is less than 1, and [tex]\frac{-3}{4}[/tex] is a contraction, since it is greater than -1.

Therefore, the scale factor -4 and 2.5 are for expansion of figure. And, [tex]\frac{2}{3}[/tex] and [tex]\frac{-3}{4}[/tex]  are for the contraction of figure.

For more details, please refer this link;

https://brainly.com/question/19718387

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