For individual or collaborative investigation.ExerciseThe distance formula, the midpoint f...

For individual or collaborative investigation.

Exercise

The distance formula, the midpoint formula, and the center-radius form of the equation of a circle are closely related in the following problem.

A circle has a diameter with endpoints(-1,3) and (5,-9) . Find the center-radius form of the equation of this circle.

Work Exercise in order to see the relationships among these concepts.

Exercise

Another way to find the radius is to repeat Exercise 32, but use the point (5,-9) rather than (-1, 3). Do this to obtain the same answer you found in Exercise 32.