Math Reflections

What changes when an ordered pairs, or point, is reflected across the y-axis?

• Neither the x-value nor the y-value

• x-value only

• y-value only

• both the x-value and the y-value

Reflect Point C over the y-axis:

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)

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

• y-axis

• x-axis

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

• Reflect over the x axis

• Reflect over the y-axis

• Slide down 1

• slide left 1

Reflections over the x-axis change the __________.

• y-coordinate

• x-coordinate

Reflections over the y-axis change the ___________.

• y-coordinate

• x-coordinate

• y-axis

• x-axis

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.

True or false: When a shape is reflected it changes size

• True

• False

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

Which two triangles are reflections of each other across the x-axis?

• A and B

• B and D

• A and C

• C and D