HP 40G User Manual page 64

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To find the
10. Find the greater of the two roots of the quadratic
greater of the two function.
roots of the
Note: Move the cursor to the graph of the quadratic
quadratic
equation by pressing the
function
cursor so that it is near
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The root value is
displayed at the bottom
of the screen.
To find the
11. Find the intersection of the two functions.
intersection of
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the two functions
12. Choose the linear function whose intersection with the
quadratic function you wish to find.
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The coordinates of the
intersection point are
displayed at the bottom
of the screen.
Note: If there is more
than one intersection (as
in our example), the coordinates of the intersection point
closest to the current cursor position are displayed.
3-4
manuals search engine
or key. Then move the
x = 1 – by pressing the
key.
Select
Root
à Ã
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or
Function aplet