A line segment with endpoints at #(1 , -2 )# and #(1, -4 )# is rotated clockwise by #pi/2#. What are the new endpoints of the line segment?
1 Answer
Nov 20, 2016
Explanation:
I am assuming a rotation about the origin.
Under a clockwise rotation about the origin of
#pi/2#
#"a point " (x,y)to(y,-x)#
#rArr(1,-2)to(-2,-1)# and
# (1,-4)to(-4,-1)#
