Reflections Over Lines

B(-2, -4)
Reflect over the line y = x

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

What is the transformation rule for a reflection over the line y = x?

• (x, y) → (-y, -x)

• (x, y) → (y, x)

• (x, y) → (-y, x)

• (x, y) → (y, -x)

What is the transformation rule for a reflection over the line y = -x?

• (x, y) → (-y, -x)

• (x, y) → (y, x)

• (x, y) → (-y, x)

• (x, y) → (y, -x)

Write a rule to describe the transformation.

• (x, y) → (x + 1, y + 1)

• Reflection over the line y = x

• Reflection over the x-axis

• Reflection over the line y = -x

Write a rule to describe the transformation.

• (x, y) → (x + 6, y - 5)

• Reflection over the line y = x

• Reflection over the x-axis

• Reflection over the line y = -x

ΔABC with A(1,2), B(4,4) and C(6, -7) is reflected across the line y = -x. Find C'.

• (-7, 6)

• (-7, -6)

• (7, 6)

• (7, -6)

ΔABC with A(1,2), B(4,4) and C(6, -7) is reflected across the line y = x. Find B'.

• (4, 4)

• (-4, -4)

• (-4, 4)

• (4, -4)

ΔABC with A(1,2), B(4,4) and C(6, -7) is reflected across the line y = x. Find A'.

• (1, 2)

• (2, 1)

• (-2, 1)

• (-2, -1)

ΔPQR with P(-4,0), Q(-1,1) and R(-2, 1) is reflected across the line y = -x. Find P'.

• (-1, 2)

• (4, 0)

• (0, 4)

• (1, -1)

ΔPQR with P(-4,0), Q(-1,1) and R(-2, 1) is reflected across the line y = -x. Find Q'.

• (-1, 2)

• (1, -1)

• (-1, 1)

• (1, 1)