III. Working With A Graph
B. MATH
9. DIST (distance)
You can find the straight line distance between two designated points on the graph of a function.
Example: Find the distance between x=1.5 and x=1 for the function.
Enter the
function. 
Graph using
ZDECM. 
DIST:

Enter x=1.5.

Enter x=1.

This is the
distance. 