5.2 Review

Rotation Rules:

90^o rotation: (x, y)→(-y,x)

What are the coordinates for A' after a 90^⁰ rotation?

• (1, 3)

• (3, 1)

• (-3, 1)

• (1, -3)

What is the Algebraic Notation for this Reflection?

• (x, y) → (y, x)
• (x, y) → (-x, y)
• (x, y) → (-y, -x)
• (x, y) → (x, -y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Write a rule for the translation.

•  (x -1, y  + 2)
•  (x -2, y  + 1)
•  (x +2, y  - 1)
• (x +1, y  -  2)

C(-6, 2) and B(-1, -1)
Rotate 90 degrees counterclockwise.

• C' (-6, 2), B' (-1, -1)
• C' (6, 2), B' (1, -1)
• C' (2, -6), B' (-1, -1)
• C' (-2, -6), B' (1, -1)

Reflect the point (-1, 2) over the y-axis.

• (-1, -2)
• (1, 2)
• (1, -2)
• (1, 4)

If A (-3, 4), Find T_5,1(A)

• (-2, 9)

• (-8, 5)

• (8, 3)

• (2, 5)

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D

• A

• B

• C

• D