# What is the length of the radius and the coordinates of the center of the circle defined by the equation #(x+7)^2+(y-3)^2=121#?

##### 1 Answer

Mar 14, 2017

The radius is

#### Explanation:

Opening up the equation,

Find the x-intercepts, and the midpoint to find x-line of symmetry,

When

Find the highest and lowest point and midpoint,

When

Hence, the radius is