# How do you find the center and radius of a circle using a polynomial #(x^2) + (y^2) + 6x - 4y = 12#?

##### 1 Answer

Re-write the equation in standard form for a circle to get:

center:

#### Explanation:

Given

Complete the square for each of the

Re-write as squared binomials and squared constant:

Since the standard form for a circle with center

The given circle has a center

graph{x^2+y^2+6x-4y=12 [-11.955, 8.045, -3, 7]}