4.2- Reflections

Reflect Point C over the y-axis: #3

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)

What is the rule for the following reflection? #8

• Reflection across       y = 3

• Reflection across        x = −3

• Reflection across            x = 3

• Reflection across          y = −3

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

What is the Algebraic Notation for this Reflection? #6

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

Which answer shows a reflection across the y-axis?

• a
• b
• c
• d

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

Reflect over x-axis. Which point would be at (3, -6)

• A
• B
• C
• H

What is a reflection?

• When you turn an object around a point.
• When you slide an object form one place to another.
• When you flip or mirror an object across a line.
• When you resize an object.

If the dotted figure is the image, the original figure was reflected over the ...

• x-axis
• y-axis

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

• y-axis
• x-axis