Answer to Question #57172 in Analytic Geometry for Peter

Question

Identify the center and radius of the circle (x + 2)^2 + (y – 3)^2 = 9
Check all that apply

Center: (2, -3) r = 3

Center: (2, -3) r = 9

Center: (-2, 3) r = 3

Center: (-3, 2) r = 9


What is the radius of a circle with the equation x^2 + y^2 + 2x + 4y – 9 = 0
Round your answer to the nearest thousandth. _____________


Which of the following is a degenerate circle?
Check all that apply

x + y = 7

x^2 + y^2 = -2

x^2 + y^2 = 5

(x – 5)^2 + (y – 3)^2 = 0