Dilate Lines

Dilations take perpendicular lines to perpendicular lines.

• True

• False

Tags

CCSS.8.G.A.3

Line AB has been dilated from center O with a scale factor of 1.5. What can we conclude about the two lines?

• Parallel

• Perpendicular

• Intersecting

• Congruent

Tags

CCSS.8.G.A.3

Line AB has been dilated from center O with a scale factor of 1.5. If AB is 8, what is the length of A'B'?

• 12

• 10

• 9.5

• 6.5

Tags

CCSS.8.G.A.3

What is the scale factor?

• 5/2

• 2/5

• 3

• 7

Tags

CCSS.8.G.A.3

The line whose equation is 3x – 5y = 4 is dilated by a scale factor of 5/3 centered at the origin. Which statement is correct?

• The image of the line has the same slope as the pre-image but a different y-intercept.

• The image of the line has the same y-intercept as the pre-image but a different slope.

• The image of the line has the same slope and the same y-intercept

  as the pre-image.

• The image of the line has a different slope and a different y-intercept from the pre-image.

Tags

CCSS.HSG.CO.A.2

• A

• B

• C

• D

Tags

CCSS.8.G.A.3

• a

• b

• c

• d

Tags

CCSS.HSG.CO.A.2

A line that passes through the points whose coordinates are (1,1) and (5, 7) is dilated by a scale factor of 3 and centered at the origin. The image of the line

• is perpendicular to the original line

• is parallel to the original line

• passes through the origin

• is the original line

Tags

CCSS.8.G.A.3

What is the rule for the dilation pictured below?

• (x, y) → (½x, ½y)

• (x, y) → (x + 2, y + 2)

• (x, y) → (2x, 2y)

• (x, y) → (2x, 3y)

Tags

CCSS.HSG.CO.A.2

Dilate the line y=5x - 2 by a scale factor of 4 centered at the origin

• y=20x - 2

• y=5x - 2

• y=20x - 8

• y=5x - 8

Tags

CCSS.8.G.A.3