Question

Find the center and radius of the circle represented by the equation below.

Answer 1

Center= (-6,-8)

Radius= 6

Explanation:

We use the formula (x-h)^2+(y-k)^2 then plug in our numbers:

`(x - h)^2 + (y - k)^2 = r^2\\(x+6)^2 +(y-k)^2=36`

In the equation -h is 6 so our h (x-coordinate) is -6

In the equation -k is 8 so our k (y-coordinate) is -8

In the equation r^2 is 36 so we take the square root of 36 to get r which is 6.