Question

Find the center and radius of the circle with equation (x+3)^2+(3+ 1)^2= 9. Then graph the circle.

Answer 1

See graph

`(x +3)^(2)` +
`(y + 1)^(2)` = 9

(-3 , -1) is the center.

`√(9)` = 3 = radius

Explanation:

`(x - h)^(2) + (y - k)^(2) = r^(2)`

center (h,k)

radius = r