Lines of Reflections

What is the image of T(4, -1) after a reflection over the

line y = -x

• (1, -4)

• (-4, 1)

• (-4, -1)

• (-1, 4)

Describe this transformation?

(x, y) ----> (-y, -x)

• Reflect over the x axis

• Reflect over the y-axis

• Reflect over line y = x

• Reflect over line y = -x

Which diagram shows a reflection across the x-axis?

• D

• C

• B

• A

True or False: When a point is reflected across a line of symmetry, it remains the same distance from that line.

• True

• False

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

How many lines of symmetry does this shape have?

• 0

• 1

• 2

• 4

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 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.

Write a rule to describe the transformation shown.

• reflection on the line y=4

• reflection on the line x=4

Reflect Point C over the y-axis:

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)