### 1.2: Distance between Two Points, Circles

Read Section 1.2 (pages 19 and 20). This reading reviews the notions of distance in the plane and the equations and graphs of circles.

Please click on the link above, and work through problems 1, 2, and 6 in Exercise 1.2. When you are done, check your answers in Appendix A.

Click the link to Book I, and click on the "Index" button. Click on button 5 (Distance) to launch the first module. Complete problems 1-5. Then, return to the index and click on button 8 (Circles II) to launch the other module. Complete problems 1-5. If at any time the problem set becomes too easy for you, feel free to move on.