Question 370505
What is the rule for the composite transformation formed by a translation 2 units to the left and 3 units up, followed by a 90 degree rotation counterclockwise?
<pre>
To translate 2 units to the left, replace x by (x+2) in the right side.

To then translate 3 units up, add +3 to the right side. 

To do a 90 degree rotation counterclockwise, replace x by y, 
and y by -x, and solve for y.

Edwin</pre>