PASCO SPARK Science Learning System User's Guide - Manual (Page 45)

D ATA ANALYSIS 37
A NALYZING DATA IN A GRAPH
Drawing a prediction
Complete these steps to manually sketch on a graph:
1. Touch the Graph Tools button to open the tool palette.
2. Touch the Prediction button.
3. Do one of the following:
• Trace a continuous curve on the graph.
• Touch several locations on the graph to draw a series of connected
points.
4. Touch OK.
To delete the prediction, touch the Prediction button again.
Finding the x- and y-values of a point
Complete these steps to select a point on a graph and display its coordinates:
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.
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.