HP 39g+ - Manual (Page 65)

Function aplet 3-3
Change the
scale
6. You can change the scale to see more or less of your
graphs. In this example, choose Auto Scale. (See
“VIEWS menu options” on page 2-14 for a
description of Auto Scale).
Select Auto
Scale
Trace a graph
7. Trace the linear function.
6 times
Note: By default, the
tracer is active.
8. Jump from the linear function to the quadratic
function.