Solution 11963: Graphing a Polar Equation on a TI-83 Family, TI-84 Plus Family Graphing Calculator, or TI-Nspire™ in TI-84 Plus Family Mode.
How can I graph an equation in polar mode on a TI-83 family, TI-84 Plus family graphing calculator, or TI-Nspire in TI-84 Plus mode?Polar equations can be graphed in either Radian or Degree mode. Follow the steps below to graph the equation r=1-sinq, for example:
• Press [MODE] [↓] [↓] [ENTER].
• Press [↓] [→] [→] [ENTER].
• Press [Y=].
• Clear any existing entries with [CLEAR].
• Press  [-] [sin] [q].
• Press [WINDOW] and enter the following settings:
With these settings the calculator will evaluate the function from q=0 to q=2p in increments of p/24.
• Press [GRAPH].
The following graph will be displayed.
Please see the TI-83 family and TI-84 Plus family guidebooks for additional information.
TI-Nspire in TI-84 Plus mode users may use the TI-84 Plus guidebook.