The line segment XY with endpoints X(3,1) and Y(2,-2) is rotated 90º about the origin. What are the new endpoints of X1 and Y1?
1 Answer
Apr 11, 2018
Explanation:
#"under a rotation about the origin of "90^@#
#• " a point "(x,y)to(-y,x)#
#rArrX(3,1)toX1(-1,3)#
#rArrY(2,-2)toY1(2,2)#
