Rigid Motion Review

Which answer shows a reflection across the x-axis?

• d

• c

• b

• a

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Triangle A is rotated 270° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes rotating 270° counterclockwise?

• (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

When an ordered pair is reflected across the x-axis, what changes?

• nothing

• y-value

• x-value

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

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

• (x, y)

• (-x, y)

• (x, -y)

• (y, x)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Reflect Point C over the y-axis:

• (-3, 2)

• (3,2)

• (-2,3)

• (3,0)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

The ordered pair (-3, 4) is reflected across the x-axis. What is the new ordered pair?

• (-3, -4)

• (3, 4)

• (3, -4)

• (-3, 4)

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

You want to reflect a figure over the horizontal line shown. 
What directions would you give? 
Reflect over the line: ________

• x = -4

• y = -4

• x - y = 4

• None of these

Tags

CCSS.8.G.A.3

CCSS.HSG.CO.A.5

Basic rigid motions ________________ the size and shape figures.

• enlarge

• reduce

• preserve

• change

Tags

CCSS.HSG.CO.B.6

Which of the following figures could NOT be mapped onto each other using a basic rigid motion?

• 
• 
• 
• 

Tags

CCSS.8.G.A.2

CCSS.HSG.CO.B.6

A 90-degree angle is reflected across the y-axis. What is the angle measurement of the image?

• 90 degrees

• 180 degrees

• 360 degrees

• 45 degrees

Tags

CCSS.HSG.CO.A.2