Practice-Reflections, Translations, and Dilations

Level 1 What is this transformation?

(x, y) ----> (-x, y)

• Reflect over the x axis

• Reflect over the y-axis

• Slide down 1

• slide left 1

Level 1 Reflections over the x-axis change the ____-__________.

• y-coordinate

• x-coordinate

Level 2 Triangle ABC has vertex A(5,2). Find the coordinates of A' after a reflection over the x-axis.

• A’(5, -2)

• A’(-5, -2)

• A’(-5, -2)

• A'(5,2)

Level 2 Point C (-5, 4) is reflected over the x-axis. What are the coordinates of C'?

• (5, 4)

• (-5, -4)

• (5, -4)

• (-5, 4)

What is the rule for reflecting across the y-axis?

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

What is the rule for reflecting across the x-axis?

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

Flipping a figures is a ...

• Rotation
• Reflection
• Dilation
• Translation

Is the picture being reflected in the y-axis or x-axis?

• y-axis
• x-axis

What does this transformation say to do?
(x, y) -----> (x, y +4) 

• slide down 4
• slide up 4
• slide right 4
• slide left 4

What transformation is happening?
(x, y) ----> (x - 2, y + 3) 

• slide up 2, left 3
• slide left 2, up 3
• slide right 2, down 3
• slide left 3, right 2