Review Transformations 2024

Rotate triangle ABC 90° clockwise about the origin. Point C' _______

• Point C' (5, 3)

• Point C' (-5,-3)

• Point C' is the reflection of point C across the x-axis.

• Point C' is the same as point C before the rotation.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotate triangle 180° counterclockwise about the origin. Point A' _______ Point B' _______ Point C' _______

• Point A' is at (1, 2), Point B' is at (3, 4), Point C' is at (5, 6)

• Point A' is at (-1, 5), Point B' is at (-1, 1), Point C' is at (2, 1)

• Point A' is at (2, 1), Point B' is at (4, 3), Point C' is at (6, 5)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

A rectangle has a perimeter of 12 units. The rectangle is dilated by a scale factor of 0.7 with the origin as the center of dilatation. If (x,y) represents the location of any point on the rectangle, which ordered pair represents the new dilated rectangle? (hint: what is the dilations rule)

• (12x, 12y)

• (0.7x, 0.7y)

• (x + 12, y + 12)

• (x + 0.7, y + 0.7)

Tags

CCSS.HSG.CO.A.2

Circle I was dilated to create Circle II. What is the rule for the dilation?

• (x, y) → (x+5, y+5)

• (x, y) → (x-5)

• (x, y) → (x, y)

Tags

CCSS.8.G.A.3

A shape was reflected across the x-axis to create an image. Which rule describes this transformation? (8.10C)

• (x, y) → (-y, x)

• (x, y) → (-x, y)

• (x, y) → (-x, -y)

• (x, y) → (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Figures A and B are Similar. Which transformation of Figure A shows that A and B are similar?

• Translations 4 units up

• Translations 4 unit down

• Dilation by scale factor of 4

• Dilations by scale factor of 1/4

Tags

CCSS.8.G.A.4

CCSS.HSG.SRT.A.2

Suppose a triangle has angles of 45°, 75°, and 60° is reflected across the x-axis. Which would be one of the new angles?

• 92

• 71

• 60

• 49

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The graphic shows quadrilateral ABCD and its dilation, quadrilateral A’B’C’D’, with the origin as the center of dilation. What is the rule for the dilation?

• (x, y) → (x+1, y+2)

• (x, y) → (x-1)

• (x, y) → (1/2 x, 1/2 y)

• (x, y) → (2x, 2y)

Tags

CCSS.HSG.CO.A.2

Which of the following are congruent? (same size and shape)

1 - Reflection

2 - Translations

3 - Rotation

4 - Dilation

• Only 1

• Only 1 and 2

• Only 1, 2, and 3

• All are congruent

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

Triangle ABC was translated 2 units to the left and 10 units down. Write a rule that describes the translation below.

• (x, y) → (x-10, y+2)

• (x, y) → (x-2, y-10)

• (x, y) → (2x, 10y)

• (x, y) → (10x, 2y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5