Question

After a rotation of 90° about the origin, the coordinates of the vertices of the image of a triangle are A'(6, 3), B'(–2, 1), and C'(1, 7). What are the coordinates of the vertices of the pre-image?

A

B

C

Answer 1

A- (3,-6)

B- (1,2)

C- (7,-1)

Explanation:

You start off with A- (6,3) B- (-2,1) C- (1,7), You then apply the rule.

A- (6,3) turns into (3,-6)

B-(-2,1) turns into (1,2)

C-(1,7) turns into (7,-1)

Those are the answers