1. www.media4math.com
TI-Nspire Mini-Tutorials
Distance Formula Template
Summary of Keystrokes
Create a graph window and add two points:
c12/Gb 7 1 ·
(Use ¤ ¡ ` ¢ to move the pointer to the second point.) ·
Label the points and map them to variables x1, x2, y1, y2:
b 1 7 (Use ¤ ¡ ` ¢ to move the pointer to the first point.) · (Use
¤ ¡ ` ¢ to move the pointer to the second point.) ·
d (Use ¤ ¡ ` ¢ to move the pointer to the x coordinate of the first point.)
a / h X 1 · (Repeat for x2, y1, and y2.)
a/hY1·a/h
X2·a/hY2·
Create a split screen with a spreadsheet:
Press the DOC key.
522/eb4
DISTANCE·=SQRT((X2
-
X1)l2)+(Y2-
1 ) l 2 ) ) · (You will be asked if the x1, x2, y1, and y2
refer to the variables you created or the cell references in the spreadsheet. Select the
Variable Reference option and click OK. Do this for each variable.)
¤¤ae·¢
Manipulate the points in the graph and watch the spreadsheet recalculate the
midpoint:
/e`¢¤¡a¡