dilations

If the scale factor is greater than 1, the dilation is...

• an enlargement
• a rotation
• a translation
• a reduction

Tags

CCSS.7.G.A.1

If the scale factor is less than 1, the dilation is...

• an enlargement
• a translation
• a rotation
• a reduction

Tags

CCSS.7.G.A.1

Enlargement or reduction? Find the scale factor!

• It's an enlargement; the scale factor is 1/2.

• It's an enlargement; the scale factor is 2.

• It's a reduction; the scale factor is 1/2.

• It's a reduction; the scale factor is 2.

Triangle ABC has vertices A (-2, 2), B (2, 4) and C (3, -1).  What are the coordinates of A' after a dilation by a scale factor of 2.5?

• (-5, 5)
• (5, -5)
• (5, 10)
• (7.5, -2.5)

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

Dilation rules use ______________ to change the ___________ of a shape. 

• addition; location
• division; direction
• subtraction; orientation
• multiplication; size

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

What scale factor was used to produce the image?

• 2
• 3
• 1/3
• 1/2

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

What scale factor was used to produce the image?

• 1
• 7
• 18
• 49

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

What scale factor was used to produce the image?

• 2.5
• 1.5
• 3.5
• 4

Tags

CCSS.7.G.A.1

CCSS.7.RP.A.2

Find the measure of x:

• 6
• 24
• 33
• 36

Tags

CCSS.7.G.B.5