Pa Dilations

When the scale factor of a dilation is less than one, the dilation is a reduction (it shrinks).

• True

• False

Tags

CCSS.8.G.A.3

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

• ½ (divide by 2)

• ¼ (divide by 4)

• 4

• 2

Tags

CCSS.8.G.A.3

Identify the location of point B. Then, dilate point B by a scale factor of 1/2 (one-half).

• (1.5, -4)

• (-1.5, 1)

• (-1, -1.5)

• (-2, -2)

Tags

CCSS.8.G.A.3

Dilate Point B by a scale factor of 3. What is the ordered pair for B¹?

• (12, 0)

• (12, 12)

• (4, 3)

• (0, 12)

Tags

CCSS.8.G.A.3

Which is the pre-image (first one)?

• Purple

• Blue

Tags

CCSS.HSG.CO.A.2

Triangle ABC is dilated by a scale factor of 2 to create triangle A'B'C'. The PERIMETER of the triangle of ABC is x units. What is the PERIMETER of the new triangle A'B'C'?

• x units

• 1/2x units

• 2x units

Tags

CCSS.8.G.A.3

Quadrilateral ABCD is dilated by a scale factor of 1/3 to create quadrilateral A'B'C'D'. The PERIMETER of the quadrilateral of ABCD is x units. What is the PERIMETER of the new quadrilateral A'B'C'D'?

• x units

• 1/3x units

• 3x units

• 1/3x ^2 units (2 is an exponent)

Tags

CCSS.7.G.A.1

Which of the following are Dilations?

• (x, y) → (x, 3y)

• (x, y) → (3x, 3y)

• (x, y) → (x, y - 3)

• (x, y) → (.5x, .4y)

Tags

CCSS.8.G.A.3

Does the image show a dilation?

• Yes

• No

A triangle has vertices with coordinates (2,0), (3, -1) and (-2,-5). If the triangle is dilated by a scale factor of 3 with the origin as the center of dilation, what are the coordinates of the vertices of the image?

• (5,3), (6,2), (1,-2)

• (6,0), (9,-3), (-6,-15)

• (2/3,0), (1,-1/3), (-2/3,-5/3)

• (-1,-3), (0,-4), (-5,-8)

Tags

CCSS.8.G.A.3