HP 39gII User Manual page 96

Plot the graph
Draw the
regression curve
Display the
equation
Predict values
86
8. Plot the graph.
P
9. Draw the regression curve (a curve to fit the data
points).
This draws the
regression line for the best linear fit.
10. Return to the Symbolic view.
Y
The slope (m) is 425.875. The y-intercept (b) is
376.25.
Predict the sales figure if advertising were to go up to 6
minutes.
1 1. Return to the Plot view.
P
Statistics 2Var app