Reflection Across Y=X

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

• (2, -4)

• (-4, 2)

• (-4, -2)

• (4, 2)

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.

Flipping a figures is a ...

• Rotation

• Reflection

• Dilation

• Translation

A flip is also called a _________.

• Translation

• Reflection

• Rotation

• Dilation

Select the rule for reflecting over the the line y=x.

• (x,y)-->(-x,y)

• (x,y)-->(x,-y)

• (x,y)-->(-x,-y)

• (x,y)-->(y,x)

What is the rule for reflecting across y=x?

• (x,y) -> (-x, y)

• (x,y) -> (x, -y)

• (x,y) -> (y, x)

• (x,y) -> (-y, -x)

• (x,y) -> (x, y)

If you are performing a reflection in the line y=x, the rule is ...

• (x, y)

• (-x, y)

• (x, -y)

• (y, x)

The vertices of a triangle are P(-3,7), Q(-2,1), and R(-5,2). What are the coordinates when it is reflected over the line y=x?

If Point A is located at (-4, 3), what is the new coordinate after reflecting it over the line y = x?

Complete the mapping for a reflection over the line y = x:

(x, y) --> (​​ (a)   , ​ (b)   )

• x

• -y

• -x

• y

Tags

transformations

reflections

mappings