Dilating points, lines, and polygons Review

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

CCSS.8.G.A.4

A dilation is which of the following: 

• only an enlargement
• only a reduction
• Either an enlargement or a reduction
• Neither an enlargement or a reduction

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

Tags

CCSS.8.G.A.3

A dilation produces a congruent figure

• True

• False

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

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

• True
• False

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

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

• True
• False

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Triangle ABC has been reduced with Q as the center of dilation to form triangle A'B'C'. Which conclusion is correct?

• A'A=B'B=C'C

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

Find the measure of x:

• 6
• 24
• 33
• 36

Tags

CCSS.8.G.B.7

• 8

• 4

• 6

• 12

Tags

CCSS.8.EE.C.7

• 10

• 12

• 14

• 15

Tags

CCSS.8.EE.C.7