8th Grade Test 1-2 Review

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.8.G.A.3

What would the new perimeter be if the shape is enlarged by a scale factor of 3?

• 7 inches

• 42 inches

• 63 inches

• 179 inches

Tags

CCSS.7.G.A.1

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True
• False

Tags

CCSS.8.G.A.3

How do you write the algebraic notation when the scale factor is 3?

•  $\left(x,y\right)\rightarrow\left(\frac{1}{3}x,\ \frac{1}{3}y\right)$ 

•  $\left(x,y\right)\rightarrow\left(-3x,-3y\right)$  

•  $\left(x,y\right)\rightarrow\left(x+3,\ y+3\right)$  

•  $\left(x,y\right)\rightarrow\left(3x,\ 3y\right)$  

Tags

CCSS.8.G.A.3

List the following numbers from least to greatest:
-64 , 3.5 , √27 , 6.666...

• -64 , 3.5 , √27 , 6.666...
• 3.5 , √27 , 6.666..., -64
• 3.5, -64, √27, 6.666...
• 6.666, √27, -64, 3.5

Tags

CCSS.8.NS.A.2

The point A (8, 12) was dilated to become point A' (2, 3). What was the scale factor?

• ½

• ¼

• 4

• 2

Tags

CCSS.8.G.A.3

Which side length corresponds with EF?

• NO

• LM

• OL

• EH

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

When the scale factor of a dilation is less than one, the dilation is a reduction.

• True
• False

Tags

CCSS.8.G.A.3

Order 3π, √ 10 , and 3.25 from greatest to least.

• √ 10, 3π, 3.25
• √ 10, 3.25, 3π
• 3π, 3.25, √ 10
•  3.25, √ 10, 3π

Tags

CCSS.8.NS.A.2

A dilation produces a congruent figure.

• True

• False

Tags

CCSS.8.G.A.3