Dilations

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

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

• True
• False

The point (8, 12) was dilated to become point (2, 3). What was the scale factor?

• ½
• ¼
• 4
• 2

What scale factor was used to produce the image?

• 2
• -2
• ¹/₂
• 1

State the coordinate of the image of the given point B (-10,-6) under a dilation with center at the origin with the given scale factor k = 1/2.

• (5,3)
• (20,12)
• (-20,-12)
• (-5,-3)

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

• Reduction

• Enlargement

• Reduction

• Enlargement

Choose the correct scale factor:

• 2
• 3
• 1/3
• 1/2

Does the image show a Dilation and what is the scale factor?

• Yes; k = 2

• Yes; k = 1/2

• No, it's a translation.

• No, it's a reflection.

Which function was used to produce the image?

• f(x, y) = (1/7x, 1/7y)

• f(x, y) = (7x, 7y)

• f(x, y) = (4x, 4y)

• f(x, y) = (8x, 8y)