
Tracing a graph
By default, the trace function is active. This enables you to move a cursor along a graph. If more than two
graphs are shown, the graph that is the highest in the list of functions in Symbolic view is the graph that will
be traced by default. Since the linear equation is higher than the quadratic function in Symbolic view, it is the
graph on which the tracing cursor appears by default.
1. 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.
2. Move the tracing cursor from the linear function to the quadratic function.
or
112 Chapter 7 Function app
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