# A line segment with endpoints at #(5, 1)# and #(7, 2)# is rotated clockwise by #pi/2#. What are the new endpoints of the line segment?

##### 1 Answer

Jun 14, 2017

#### Explanation:

#"I am assuming the rotation is centred at the origin"#

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

#"a point " (x,y)to(y,-x)#

#rArr(5,1)to(1,-5)#

#rArr(7,2)to(2,-7)#