Quiz 1 - 3

Triangle C is rotated 180° clockwise with the origin as the center of rotation to create a new figure. Which triangle shows the new location?

• A
• B
• C
• D

If you were to rotate ABCD 180°  about the origin, what would the coordinate of A' be?

• (-5, 5)
• (-3, -5)
• (-5, 3)
• (-3, 3)

If you were to rotate ABCD 180° about the origin, what would the coordinates of B' be?

• (0, 0)
• (-6, -5)
• (-1, 3)
• (-6, 2)

When a coordinate goes to (-x, -y) it is a 

• 180 degree rotation
• a 90 degree clockwise rotation
• a 90 degree counterclockwise rotation
• A 360 degree rotation

Triangle B is rotated 90° counterclockwise with the origin as the center of rotation to create a new figure. Which rule describes this transformation?

• (x,y)→(y, -x) 
• (x,y)→(x,y)
• (x,y)→(-x,-y)
• (x,y)→(-y,x)

A transformation that “turns” a figure about a fixed point at a given angle and a given direction.

• rotation
• translation
• reflection
• dilation

Label the coordinate plane.

a

b

c

x axis

y axis

origin

This transformation is a ​ (a)   degree ​ (b)   that turns ​ (c)   along ​ (d)   .

• 90
• rotation
• counter clockwise
• the origin
• angle A
• 270
• reflection
• clockwise
• 180
• translation

This figure was rotated how many degrees?

• 90

• 180

• 270

• 360

This figure was rotated how many degrees?

• 90

• 180

• 270

• 360