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7 Data analysis
Analyzing data in a graph
2. Touch the Graph Tools button to open the tool palette.
3. Touch the Select button.
The button turns orange.
4. Touch a point on the graph.
The x- and y-values of the selected point are displayed.
5. Optionally, touch the arrows of the point selector to change which point is selected.
Touch the Select button again to clear the selection.
Finding the x- and y-difference between two points
Complete these steps to select a range of points and display the change-in-x and change-in-y
between the first and last points in the selected range:
1. If more than one data run is displayed, first select a run:
a. Touch the graph legend.
The legend enlarges.
b. In the legend, touch the symbol of the run that you want to select.
The red outline moves to the selected run.
2. Touch the Graph Tools button to open the tool palette.
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