To obtain the angle, repeat the above procedure, but select
6:RuP
( . w
9.2 Polar Equations and Graphs
EXAMPLE 4 Graphing a Polar Equation Using a Graphing Utility
Use a graphing utility to graph the polar equation 2sin
r .
SOLUTION We must change the MODE of the calculator to POLAR mode.
This is done by pressing MODE and using the arrows to put the
cursor on POL and pressing ENTER as shown:
Now press the Y = button and enter the expression in
1
r :
NOTE: Because the calculator is in POLAR mode, the
shown
in
1
r is obtained by pressing the X,T,
, n button.
Set the viewing window as shown on page 571 and press GRAPH.
You should obtain the following:
To Next Page
Loading...
