Unit 3 Review Quiz: Dilations

In this figure, triangle TRS is the ​ (a)   , triangle T'R'S' is the ​ (b)   and a(n) ​ (c)   occurred.

• pre-image
• image
• enlargement
• reduction
• spin
• flip

Tags

CCSS.HSG.CO.A.2

In this figure, triangle ABC is the ​ (a)   and triangle A'B'C' is the ​ (b)   . A(n) ​ (c)   occurred.

• pre-image
• image
• reduction
• enlargement
• None of the above

Tags

CCSS.7.G.A.1

Under a dilation:

which scale factor will result in a congruent image?​ (a)  

which scale factor will result in a enlarged image?​ (b)  

which scale factor will result in a reduced image?​ (c)  

• 1
• 2
• 0.5

Tags

CCSS.8.G.A.3

Pentagon ABCDE is similar to Pentagon RYMNT. Which of the following is/are correct (choose all that apply).

Tags

CCSS.HSG.SRT.A.2

Pentagon ABCDE is similar to Pentagon RYMNT. Which of the following is correct.

• ∠C ≅ ∠M

• ∠T ≅ ∠E

• ∠Y ≅ ∠B

• ∠A ≅ ∠M

• ∠C ≅ ∠R

Tags

CCSS.HSG.SRT.A.2

Plot the dilated points, original points: A(3,3) B(0,3) C(0,-2) by a scale factor of 3 with the origin as the center of dilation.

Tags

CCSS.8.G.A.3

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

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)

Tags

CCSS.8.G.A.3

Choose the correct scale factor:

• 2

• 3

• 1/3

• 1/2

Tags

CCSS.7.G.A.1

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

• ½

• ¼

• 4

• 2

Tags

CCSS.8.G.A.3