Question

PM Fri Feb 26oneAA47%b.socrative.comIdentify the coordinates for AABC after a 90 °rotation counter-clockwise about the origin.A) A'(6,-5), B'(4,-2), C'(4, -7)B) A'(-5, -6), B'(-2,-4), C'(-7,-4)C) A'(-6,5), B'(-4, 2), C (-4, 7)D) A'(5,0), B’(2,4), C'(7,4)

Answer 1

EXPLANATION

Given the triangle ABC,

We can see that after a rotation 90 degrees counter-clockwise about the origin, the new coordinates are:

A'=(-4,2) B= (-6,5) C=(-4,7)