# A line segment with endpoints at #(-1, 1)# and #(3, -5)# is rotated clockwise by #pi/2#. What are the new endpoints of the line segment?

##### 1 Answer

Apr 22, 2018

#### Explanation:

#"assuming rotation about the origin"#

#"under a clockwise rotation about the origin of "pi/2#

#• " a point "(x,y)to(y,-x)#

#rArr(-1,1)to(1,1)#

#rArr(3,-5)to(-5,-3)#