Rotations and Reflections

Reflect the point (2, -4) over the y-axis.

• (-4, 2)

• (-2, 4)

• (-2, -4)

• (2, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• (6, 3)

• (-6, -3)

• (-3, 6)

• (3, -6)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• (2, -4)

• (-4, 2)

• (-4, -2)

• (4, 2)

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 slide an object form one place to another.

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

• When you resize an object.

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Point C (-5, 4) is reflected over the x-axis. What are the coordinates of C'? 

• (5, 4)

• (-5, -4)

• (5, -4)

• (-5, 4) 

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• Reflect over the x axis

• Reflect over the y-axis

• Slide down 1

• slide left 1

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect the point (-1, 2) over the y-axis.

• (-1, -2)

• (1, 2)

• (1, -2)

• (1, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect the point (-2, -2) over the x-axis.

• (2, 2)

• (2, -2)

• (-2, 0)

• (-2, 2)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Rotate the point (7,8) around the origin 90 degrees clockwise. State the image of the point.

• (-7,-8)

• (8,-7)

• (-8,7)

• (8,7)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle A is rotated 90° clockwise with the origin as the center of rotation to create a new figure. Which rule describes rotating 90° clockwise?

• (x,y)→(y, -x) 

• (x,y)→(-x,-y)

• (x,y)→(-y,x)

• (x,y)→(x,y)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5