here is the classwork:
See Lesson 11 in the textbook for more notes on this.
Please complete the problems on finding the perpendicular bisector for next Wednesday. The answers are here: 
There is an assignment on WebWorK about Nonlinear Systems, and you can take a look at it if you are ambitious: I would recommend looking at Problem 1 to start with. You can graph both of the equations in Desmos and see if you can figure out the solution or solutions that way! (In fact, you can try that with all of them.)
Please do work the CircleLab and try to get it correct 4 times, as directed. Since this problem uses Geogebra, you may want to work in the Computer Lab.
The nQuiz next time will be on putting the equations of circles into standard form by completing the square, and reading off the center and radius. (No graphing. But remember that you will have to draw the graphs on the Final Exam!)
