HP 40G User Manual page 65

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To find the slope
of the quadratic
function
To find the signed
area of the two
functions
Function aplet
manuals search engine
13. Find the slope of the quadratic function at the intersection
point.
H@IV— A8I—
Select Slope
PF—
The slope value is
displayed at the bottom
of the screen.
14. To find the area between the two functions in the range
–2 ≤ x ≤ –1, first move the cursor to
select the signed area option.
H@IV— A8I—
Select Signed area
PF—
15. Move the cursor to x = 1 – by pressing the
key.
PF—
16. Press to accept using F2(x) = (x + 3)
PF—
boundary for the integral.
17. Choose the end value for
x.
BPUP—
2
PF—
The cursor jumps to
x = –2 on the linear
function.
F1 x ( )
= 1 x – and
or
2
– 2 as the other
3-5