Proportionality and Dilation

Given: PQ || BC.  Find the length of AB.

• 14

• 11

• 16

• 18

Tags

CCSS.HSG.SRT.B.4

Solve for X

• 7.5

• 4.8

• 13.33

• 5

Tags

CCSS.HSG.CO.C.10

What similarity theorem would prove that these triangles are similar?

• SAS∼

• SSS∼

• AA∼

• Side Splitter

Tags

CCSS.HSG.SRT.B.5

ABC is dilated about P(2, -4) by a scale factor of 3. FInd the coordinates of B'.

• B'(0, 6)

• B'(-2, 0)

• B'(-4, 4)

• B'(-4, 2)

• B'(-6, 4)

Tags

CCSS.8.G.A.3

ABC is dilated about P(3, -1) by a scale factor of 0.5.

Find the coordinates of A'.

• A'(-2, 5)

• A'(-7, 2)

• A'(-2, 2)

• A'(-3.5, -2.5)

Tags

CCSS.8.G.A.3

What can you say about the scale factor, k?

• k > 1

• k = 1

• 0 < k < 1

Tags

CCSS.8.G.A.3

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

• ½

• ¼

• 4

• 2

Tags

CCSS.8.G.A.3

State the coordinate of the image of the given point B (4,9) under a dilation with center at the origin with the given scale factor of 2.

• B' (2 , 4.5)

• B' (-8 ,-18)

• B' (8 ,18)

• B' (9 ,4)

Tags

CCSS.8.G.A.3

When a dilation has a scale factor greater than one, the dilation is an enlargement.

• True

• False

Tags

CCSS.8.G.A.3

How do you write the algebraic notation when the scale factor is 3?

• (x, y) goes to (1/3x, 1/3y)

• (x, y) goes to (-3x, -3y)

• (x, y) goes to (x + 3, y + 3)

• (x, y) goes to (3x, 3y)

Tags

CCSS.8.G.A.3