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1. Point E (0,-2) is a vertex of square DEFG. After a 90° clockwise rotation of the square about the origin, which of the following is the location of E ?

A) (-2,0)
B) (2,0)
C) (2,2)
D) (0,2)

2. Point is a vertex of triangle D(-3,5). After a rotation of the triangle about the origin, is located at . Which of the following was the rotation of the triangle?
A) 90 degrees clockwise
B) 90 degrees counterclockwise
C) 180 degrees
D) 360 degrees

THANKS!

4 answers

#1. Well, you could actually try plotting the point and rotating the paper.

Clearly, (0,-2) -> (-2,0)

Being a vertex of a square is just noise -- makes no difference in the rotation.

#2 garbled
ohhk thank you!
what is garbled???
1 A C D
2 A
3 C
4 B
5 C
I got a 100%