Question

Describe the transformation that maps the pre-image (AA) to the image (AA').
A)
a rotation 180° clockwise around the origin
B)
a rotation 270° clockwise around the origin
C)
a rotation 90° counterclockwise around the origin
D)
a rotation 270º counterclockwise around the origin

Answer 1

Answer:

B)  270° Clockwise

Step-by-step explanation:

270° is 3/4 of the way around a circle.  

If you imagine the minute hand of an analog clock moving from the 3 o'clock position to the 12 o'clock position, 3/4 of an hour has passed.  

That's how the angle on the x-axis moved to the y-axis.

Answer 2

Answer:

D) a rotation 270º counterclockwise around the origin

Step-by-step explanation:

A rotation 270° counterclockwise around the origin maps triangle A to triangle A'.