10.20.23 Strategies Transformations Review

Write a rule for the translation.

• (x -1, y + 2)

• (x -2, y + 1)

• (x +2, y - 1)

• (x +1, y - 2)

What are the coordinates for B' after a reflection over the x-axis?

• (-2,4)

• (4,-2)

• (-2,-4)

• (2,4)

What are the coordinates for C' after a reflection over the y-axis?

• (1,2)

• (-1,-2)

• (2,1)

• (-1,2)

(2, 6) --> Translate up 3, left 1 and rotate 180°

• (-1,-9)

• (1, -9)

• (5,5)

• (-5,5)

A flip is also called a __________

• Translation
• Rotation
• Reflection
• Transformation

Reflect the point (2, -4) over the y-axis.

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

What transformation is happening?

T_{(x + 2, y - 3)}

• translate up 2, left 3

• translate right 2, up 3

• translate right 2, down 3

• translate left 3, right 2

Reflect (6, -3) over the line x-axis.

• (6, 3)
• (-6, -3)
• (-3, 6)
• (3, -6)

Rotate the point (7,8) around the origin 90 counter clockwise degrees. State the image of the point.

• (-7,-8)
• (8,-7)
• (-8,7)
• (8,7)

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)