1. Section 6.4 Graphs of Polar Equations

2. Using Polar Grids to Graph Polar Equations

3. A polar equation is an equation whose variables are r and
A polar equation is an equation whose variables are r and . The graph of a polar equation is the set of all points whose polar coordinates satisfy the equation. We use polar grids to graph polar equations.

4. Graphing a Polar Equation by Point Plotting

5. Graphing r=4 cos

8. Graphing A Polar Equation Using Symmetry

10. Checking for Symmetry

15. Example

16. Example

17. Example

18. Example