# How do you write the standard form of the equation of the circle with the given the center (-3,1) and radius of 7?

##### 1 Answer

Jan 5, 2016

#### Explanation:

The standard form of the equation for a circle is

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

Where the center is

Thus,

#h=-3#

#k=1#

#r=7#

Plug these in to the standard form:

#(x-(-3))^2+(y-1)^2=7^2#

When simplified:

#(x+3)^2+(y-1)^2=49#