Question

The point I(–4, –1) is rotated 90 counter-clockwise about the origin. What is the image of I?

a. I(4, –1)
b. I(–1, –4)
c. I(1, –4)
d. I(4, 1)

Answer 1

I(1, -4)

Explanation:

(-4, -1) is in Quadrant 3 where x and y are negative

when it's rotated 90 ccw it will become in Quadrant 4 where x is positive and y is negative

and also the values of x and y switches

so the answer will be I(1, -4)