HP Prime Graphing Calculator User Manual

Page 124

120

Function app

3. Choose the function whose point of intersection with

the currently selected function you wish to find.
The coordinates of
the intersection are
displayed at the
bottom of the
screen.
Tap

on the

screen near the
intersection, and
repeat from step 2. The coordinates of the
intersection nearest to where you tapped are
displayed at the bottom of the screen.

To find the slope of

the quadratic

function

We will now find the slope of the quadratic function at the
intersection point.
1. Tap

to re-display the menu, tap

and

select Slope.
The slope (that is,
the gradient) of the
function at the
intersection point is
displayed at the
bottom of the
screen.
You can press

to trace along the curve and see the slope at

other points. You can also press

to jump to

another function and see the slope at points on it.

2. Press

to re-display the Plot menu.

To find the signed

area between the

two functions

We’ll now find the area between the two functions in the
range .
1. Tap

and select Signed area.

1.3

–

x 2.3

 