Question

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Answer 1

To do a 90 degree clockwise rotation about the origin, we know that a point moves from ( x,y) to ( y, -x)

First we need to find the coordinates of point B

B is at ( -4, 1)

The x coordinate is -4 and the y coordinate is 1

The new location of point B will be at ( y, -x) or at ( 1, - -4) or at ( 1, +4)