# How do you graph #x^2 + y^2 = 16#?

##### 2 Answers

Mar 13, 2018

#### Answer:

This is a circle of radius

#### Explanation:

Given:

#x^2+y^2=16#

Note that we can rewrite this equation as:

#(x-0)^2+(y-0)^2 = 4^2#

This is in the standard form:

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

of a circle with centre

So this is a circle of radius

graph{x^2+y^2 = 16 [-10, 10, -5, 5]}

Jul 7, 2018

#### Answer:

See below:

#### Explanation:

The equation of a circle is given by

With center

We have no

We know from

graph{x^2+y^2=16 [-10, 10, -5, 5]}

Hope this helps!