Appendix B - Graphs of Equations - Exercises - Page 427: 47

Refer to Graph I, Center of the circle = $(3, 1)$ Radius = $\frac{5 – 1}{2}$ = $2$ The center-radius form of the circle equation is $(x – 3)^2$ + $(y – 1)^2$ = $4$

Refer to Graph I, Center of the circle = $(3, 1)$ Radius = $\frac{5 – 1}{2}$ = $2$ The center-radius form of the circle equation is $(x – 3)^2$ + $(y – 1)^2$ = $2^2$ $(x – 3)^2$ + $(y – 1)^2$ = $4$