Dilations

Enlargement or reduction?  Find the scale factor!

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

Tags

CCSS.8.G.A.3

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

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

Tags

CCSS.8.G.A.3

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

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

Tags

CCSS.8.G.A.3

Which algebraic expression could be the rule for a reduction?

• (x, y)→(2x, 2y)
• (x, y)→(5/2 x, 5/2 y)
• (x, y) →(0.5x, 0.5y)
• (x, y)→(5x, 5y)

Tags

CCSS.HSG.CO.A.2

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

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

Tags

CCSS.8.G.A.3