Translations and Reflections

What is the algebraic representation for reflecting a figure over the x-axis?

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

What is the algebraic representation for reflecting a figure over the y-axis?

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

Which point shows a reflection of point      X(9, -2) over the x-axis?

• (-2, 9)
• (9, -2)
• (9, 2)
• (-9, -2)

Which point shows a reflection of point      Y(-5, -7) over the y-axis?

• (5, -7)
• (-5, -7)
• (5, 7)
• (5, 7)

Determine how to translate triangle A'B'C' to triangle ABC.

• (x+2, y-5)
• (x+2, y-9)
• (x-2, y-9)

Determine where X' would be if you translated X 3 units to the left and 9 units down.

• (-4, 4)
• (-10, 2)
• (-4, -5)
• (-1, 5)

Where would A' be if you translated A 3 units to the right and 4 units down?

• (-4, 4)
• (-1, 0)
• (0, -1)

State the line of reflection.

• Reflection across y-axis
• Reflection across x-axis
• Reflection across x = 1
• Reflection across y = 1

Which triangle is a translation of triangle X?

• triangle A

• triangle B

• triangle C

• triangle D

Triangle XYZ is reflected across the x-axis, and X = (-11,8). What are the coordinates of X'?

• (11,-8)

• (-8,11)

• (11,8)

• (-11,-8)