Reflections Over X-Axis and Y-Axis

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

• y-coordinate

• x-coordinate

• y-axis

• x-axis 

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

• y-axis

• x-axis

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

• A

• B

• C

• H

Where will A' be at, if triangle ABC is reflected by
(x,y) --> (-x,y)?

• (2,1)

• (1,-2)

• (-1,2)

What is the Algebraic Notation for this Reflection?

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

What is the Algebraic Notation for this Reflection?

• (x, y) → (y, x)

• (x, y) → (-x, y)

• (x, y) → (-y, -x)

• (x, y) → (x, -y)

Reflect the image over the y-axis.  Which quadrants will the image be located in?

• Quadrant I and II

• Quadrant II and III

• Quadrant III and IV

• Quadrant I and IV

Triangle GHI is reflected across the x-axis.  What are the coordinates of I'?

• (-2, 6)

• (2, 6)

• (-6, -2)

• (6, 2)

How do you represent reflection over the x axis Algebraically?

• (-y, -x)

• (x + a, y + b)

• (x , -y)

• (ax, by)

G is plotted at (3, -2) and is reflected across the y-axis. Which ordered pair below shows this reflection?

*Use the coordinate plane to help you.

• (3, 2)

• (-3, -2)

• (2, 3)

• (-2, 3)