Question

Rectangle JKLM is rotated 90° clockwise about the origin.

What are the coordinates of J’?
J’(–1, –4)
J’(4, –1)
J’(1, 4)
J’(4, 1)

Answer 1

Clockwise rotation 90 ° about origin

R_{90, clockwise, origin}(x,y) -> (y,-x)

J(-4,1) therefore

R_{90, clockwise, origin}J(-4,1) -> J'(1,+4) this answer was form other person credits to him/her

Explanation: