Reflection Over a Line

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

• (1, -4)

• (-4, 1)

• (-4, -1)

• (-1, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What is a reflection?

• When you turn an object around a point.

• When you flip or mirror an object across a line.

• When you slide an object from one place to another.

• When you resize an object.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The following is a ...

• Translation

• Reflection

• Rotation

• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Flipping a figures is a ...

• Rotation

• Reflection

• Dilation

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

True or False: when a shape is reflected, each point remains the same distance away from the line of reflection.

• True

• False

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect (6, -3) over the line x-axis.

• (6, 3)

• (-6, -3)

• (-3, 6)

• (3, -6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

What type of tranformation is this?

• Translation

• Rotation

• Reflection

• Dilation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Flipping a figure is a ...

• Rotation

• Dilation

• Reflection

• Translation

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• y-coordinate

• x-coordinate

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5