6.Plot the equation for variable A.

Select Auto Scale

7.Trace along the graph representing the left side of the equation until the cursor nears the intersection.

20 times

Note the value of A displayed near the bottom left corner of the screen.

The Plot view provides a convenient way to find an approximation to a solution instead of using the Numeric view Solve option. See “Plotting to find guesses” on page 7-7for more information.

Solve aplet’s NUM view keys

The Solve aplet’s NUM view keys are:

Key

Meaning

 

 

 

 

Copies the highlighted value to the

 

edit line for editing. Press

when

 

done.

 

 

Displays a message about the

 

solution (see “Interpreting results” on

 

page 7-6).

 

 

Displays other pages of variables, if

 

any.

 

 

Displays the symbolic definition of the

 

current expression. Press

when

 

done.

 

 

Finds a solution for the highlighted

 

variable, based on the values of the

 

other variables.

 

 

 

 

7-4

Solve aplet