Performing transformations

When you dilate a line and the center is on the line the equation remains the same

• true

• false

What is the scale factor of the dilation?

• 5/2
• 3/2
• 7/2
• 2/3

What type of dilation does this represent?

• enlargement

• reduction

• translation

• rotation

One vertex of a rectangle is T^| (-4,8)  if the rectangle is dilated about the origin, so that T^| is (-12,24) what is the scale factor of the dilation?

• 1/3
• 3

Is Figure B a scaled copy of Figure A?

• Yes

• No

Dilate Point B by a scale factor of 1/2, with the origin as the center of the dilation.

• (1.5,-4)

• (-1.5,1)

• (-1,-1.5)

• (-2,-2)

Does the image show a dilation?

• Yes
• No

What happens to the coordinates in during a dilation?

• Multiply the coordinates by the scale factor.

• Divide the coordinates by the scale factor.

• Add the scale factor to the coordinates.

• Subtract the scale factor from the coordinates

The green triangle is a dilation of the blue triangle. What type of dilation is this?

• Enlargement

• Reduction

When you dilate the equation of a line the y-intercept remains the same

• true

• false