How Do You Graph Polar Equations on a TI-89?

[d.tran103]

Hey, I'm having trouble graphing polar equations in my TI-89. I just bought it and still don't understand how it works. For example I have r = 5 + 5 sin(theta). It's suppose to look like a upside apple thing (kind of). But I don't know how to get the graph to show up. I know I'm doing something wrong with my mode. Here is what my mode is set to:

Graph - Polar
Current Folder - Main
Display Digits - Float G
Angle - Degree
Exponential Format - Normal
Complex Format - Rectangular
Vector Format - Rectangular
Pretty Print - Off

Can someone tell me what I'm doing wrong? Thanks!

 

[Omega_Prime]

Hey, I'm having trouble graphing polar equations in my TI-89. I just bought it and still don't understand how it works. For example I have r = 5 + 5 sin(theta). It's suppose to look like a upside apple thing (kind of). But I don't know how to get the graph to show up. I know I'm doing something wrong with my mode. Here is what my mode is set to:

Graph - Polar
Current Folder - Main
Display Digits - Float G
Angle - Degree
Exponential Format - Normal
Complex Format - Rectangular
Vector Format - Rectangular
Pretty Print - Off

Can someone tell me what I'm doing wrong? Thanks!

Ok, off the bat I'd recommend setting the "angle" to "Radian" for polar mode. Got the same settings on mine pretty much otherwise.