# Point A is at #(-7 ,3 )# and point B is at #(5 ,4 )#. Point A is rotated #pi # clockwise about the origin. What are the new coordinates of point A and by how much has the distance between points A and B changed?

##### 1 Answer

Jun 2, 2017

The distance has decreased by

#### Explanation:

Given:

A

The coordinate rule for a

Using the coordinate rule:

The distance formula is

The distance between point

The distance between the rotated point