Knowledge Base

Solution 34712: Graphing a Polar Equation on the TI-84 Plus C Silver Edition Graphing Calculator.

How can I graph an equation in polar mode on a TI-84 Plus C Silver Edition graphing calculator?

Polar equations can be graphed in either Radian or Degree mode. Follow the steps below to graph the equation r=1-sinq

Example :

1) Press [MODE] [↓] [↓] [ENTER].
2) Press [↓] [→] [→] [ENTER].

3) Press [Y=].
4) Clear any existing entries with [CLEAR].
5) Press [1] [-] [sin] [q].

6) Press [WINDOW] and enter the following settings:

qmin=0
qmax=2p
qstep=p/24
Xmin=-3
Xmax=3
Xscl=1
Ymin=-3
Ymax=1
Yscl=1

With these settings the calculator will evaluate the function from q=0 to q=2p in increments of p/24.

7) Press [GRAPH].

The following graph will be displayed.

Please see the TI-84 Plus C Silver Edition guidebook for additional information.