# Point A is at #(3 ,2 )# and point B is at #(-7 ,3 )#. Point A is rotated #pi/2 # 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

Mar 21, 2016

Rotating Point A

#### Explanation:

Now,

You should probably draw a diagram, but it turns out that the new point, which we can call Point A', has the coordinates

We can calculate the distance between Point A' and Point B: