Texas Instruments TI-84 - Manual (Page 132)

Chapter 3: Function Graphing 129
minimum, maximum minimum, maximum minimum, maximum minimum, maximum
minimum and maximum find a minimum or maximum of a function within a specified
interval to a tolerance of 1
âL5.
To find a minimum or maximum, follow these steps.
1. Select 3:minimum or 4:maximum from the CALCULATE menu. The current graph is
displayed.
2. Select the function and set left bound, right bound, and guess as described for zero .
The cursor is on the solution, and the coordinates are displayed, even if you have
selected
CoordOff format; Minimum or Maximum is displayed in the bottom-left corner.
To move to the same x-value for other selected functions, press
} or †. To restore the
free-moving cursor, press
| or ~.
intersect intersect intersect intersect
intersect finds the coordinates of a point at which two or more functions intersect using
solve( . The intersection must appear on the display to use intersect .
To find an intersection, follow these steps.
1. Select 5:intersect from the CALCULATE menu. The current graph is displayed with
First curve?
in the bottom-left corner.