
5. Specify the end value for x.
Tap and press 2 3 .
The cursor jumps to x = 2.3 and the area between the two functions is shaded.
6.
To display the numerical value of the integral, tap .
7.
Tap to return to the Plot menu. Note that the sign of the area calculated depends both on
which function you are tracing and whether you enter the endpoints from left to right or right to left.
TIP: When the Goto option is available, you can display the Go To screen simply by typing a number. The
number you type appears on the entry line. Just tap to accept it.
Analyzing functions 125
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