Scale Factors and Dilations

What is the scale factor in the algebraic representation
(x,y) to (2x,2y)

• k=2
• k=1/2
• k=2.2
• k=0.5

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

What is the scale factor from the small shape to the big shape?

• 1/2
• 7/3
• 2
• 10/3

Tags

CCSS.7.G.A.1

If the scale factor is less than one, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

If the scale factor is greater than one, the new figure will be

• a reduction
• an enlargement
• a scale
• not proportional

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

What is the scale factor from ΔDEF to ΔABC?

• 2
• 3/2
• 2/3
• 1/2

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

CCSS.8.G.A.5

Which is an example of an enlargement?

• k = 1/2
• k = 1
• 2:3
• 2.5

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

In a dilation what mathematical operation is used with the scale factor?

• addition 
• subtraction 
• multiplication 
• division 

Tags

CCSS.8.G.A.3

CCSS.8.G.A.4

What is the definition of dilations in mathematical terms?

• to make larger or smaller
• to make larger
• none of the above
• to make smaller

Tags

CCSS.8.G.A.3

A dilation produces a congruent figure

• True
• False
• D

Tags

CCSS.8.G.A.3

If the scale factor is greater than 1, the new figure will be

• an enlargement
• a reduction
• a scale factor
• bigger

Tags

CCSS.8.G.A.3