# How do you graph the equation #r = 1 + cos( theta )#?

##### 1 Answer

Graph of

graph{x^2+y^2=sqrt(x^2+y^2)+x [-10, 10, -5, 5]}

#### Explanation:

In case you are trying to graph the equation in rectangular form, here's a way to get it to rectangular form and graph it.

We can make use of the following formulas when trying to convert from polar to rectangular:

Now we can rewrite our equation:

Multiplying both sides by

#= r + rcos(theta)#

Substituting the value of

#=sqrt(x^2+y^2) + x#

So our equation becomes

Below are a few graphs.

Graph of

graph{x^2+y^2=sqrt(x^2+y^2)+x [-10, 10, -5, 5]}