Chapter 7 Review

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

• True
• False

Tags

CCSS.8.G.A.3

How do you write the algebraic notation when the scale factor is 1/2?

• (x, y) goes to (2x, 2y)
• (x, y) goes to (1/2x, 1/2y)
• (x, y) goes to (-2x, -2y)
• (x, y) goes to (2x, 1/2y)

Tags

CCSS.8.G.A.3

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

What does a translation do to an image?

• Turns it 90* clockwise
• Mirrors it
• Shrinks it
• Slides it

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What does a reflection do to an image?

• Turns it 90* clockwise

• Flips it

• Shrinks it

• Slides it

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A dilation can produce a smaller figure or a(n)______

• reduction
• enlargement
• scale factor
• center of dilation

Tags

CCSS.8.G.A.3

The __________ is the ratio of a length of the image to the corresponding length on the original figure.

• reduction
• enlargement
• scale factor
• center of dilation

Tags

CCSS.7.G.A.1

Every dilation has a fixed point called the_________

• reduction
• enlargement
• scale factor
• center of dilation 

Tags

CCSS.8.G.A.3

What is the equation to get the scale factor?

• Original × Image

• Image + Original

• Image ∕ Original

• Original ⁄ Image

• Image - Original

Tags

CCSS.7.G.A.1

What is the scale factor when the coordinates of the pre-image is A: (6,6) B: (6,0) C: (-3, 0) D: (-3,6) and the coordinates of the image is W: (2,2) X: (2,0) Y: (-1,0) Z: (-1,2)

• 1/3

• 1/2

• 2

• 3

Tags

CCSS.7.G.A.1