# How do you graph polar curves to see the points of intersection of the curves?

##### 1 Answer

If the polar equations are

#### Explanation:

Explication:

Find the points of intersection of the cardioid

Eliminate r.

The equation for

(3pi)/2#.

The common points are

For the graph, a = 1. Use

graph{(x^2+y^2-(x^2+y^2)^0.5-x)(x^2+y^2-1)=0[-2 4 -1.5 1.5]}

The two parabolas

intersect at

graph{(x+(x^2+y^2)^0.5-1)(-x+(x^2+y^2)^0.5-1)=0[-3 3 -1.5 1.5]}