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Trace a
graph
Change the
scale
106
8. By default, the trace functionality is active. This
enables you to move a cursor along the contour of a
plot. If more than two plots are shown, the plot that is
the highest in the list of functions in Symbolic view is
the plot that will be traced by default. Since the linear
equation is higher than the quadratic function in
Symbolic view, it is the plot on which the tracing
cursor appears by default
9. Trace the linear
function.
>
or
<
Note how a cursor
moves along the
plot as you press
the buttons. Note
too that the
coordinates of the cursor appear at the bottom of the
screen and change as you move the cursor.
10. Move the tracing cursor from the linear function to the
quadratic function.
=
or
\
1 1. Trace the quadratic
function.
>
or
<
Again notice how
the coordinates of
the cursor appear at
the bottom of the
screen and change as you move the cursor.
Tracing is explained in more detail in "Trace" on
page 84.
You can change the scale to see more or less of your
graph. This can be done in four ways:
Press
to zoom in or
+
•
current cursor position. This method uses the zoom
factors set in the Zoom menu. The default for both x
and y is 2.
to zoom out on the
w
Function app
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