REflections

What happens to a coordinate when it is reflected over the y-axis?

• x and y stay the same
• x stays the same and y changes to its opposite
• x changes to its opposite and y stays the same
• both x and y change to their opposites

What happens to a coordinate when it is reflected over the x-axis?

• x and y stay the same
• x stays the same and y changes to its opposite
• x changes to its opposite and y stays the same
• both x and y change to their opposites

Which answer shows a reflection across the x-axis?

• d
• c
• b
• a

∆QRS contains the points: Q(4, 2) R(5, 1) S(3,7). If the triangle is reflected across the y-axis, what will S' be?

• S'(3, 7)
• S'(-3, 7)
• S'(-3, -7)
• S'(3, 7)

∆QRS contains the points: Q(-4, 2) R(5, -1) S(3,-7). If the triangle is reflected across the x-axis, what will R' be?

• R'(3, 7)
• R'(5, -1)
• R'(1, -5)
• R'(5, 1)

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.

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 this transformation?
(x, y) ----> (x, -y) 

• Reflect over the x axis
• Reflect over the y-axis
• Slide down 1
• slide left 1

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

• y-axis

• x-axis

A slide is also called a _________.

• Translation
• Reflection
• Rotation
• Transformation