The tutorial teaches how to calculate the slope of a line connecting two points using a graphing calculator. It involves: 1) Creating a graph window, adding two points, and connecting them with a line; 2) Using the geometry measurement tools to measure the slope of the line; and 3) Manipulating the line or changing the point coordinates to see how the slope changes.

1. TI-Nspire App Tutorial
The Slope of a Line Connecting Two
Points

2. Summary
• In this tutorial, you’ll be exploring the concept
of slope. The steps in the tutorial include:
– Creating a Graph Window.
– Adding two points
– Connecting the points with a line.
– Using the Geometry measurement tools to
measure the Slope.
– Manipulating the line to change the slope.

3. Create a Graph Window
Click on the +tool to activate this menu.

4. Deactivate the Keyboard
By default the keyboard is active. Click on the
Keyboard button to deactivate it.

5. Select the Geometry Tools
Click Menu. Then select Geometry > Points &
Lines > Point.

6. Place Two Points Onscreen
Note: You’ll have to reselect the Point tool to create the second
point.

7. Display the Coordinates
Press once on the point. Then press again to bring up the
Coordinate option. Select it to display the coordinates.

8. Display the Coordinates
Repeat with the other point.

9. Construct a Line
Click Menu and select the Line tool

10. Construct a Line
Click on the first point. Then click on the second point to
construct the line.

11. Measure the Slope
Click on Menu. Click on “Tools” to go back to the
Menu that displays Measurement.

12. Measure the Slope
Click on Menu. Click on “Tools” to go back to the
Menu that displays Measurement.

13. Measure the Slope
Click on the line and see the slope displayed.

14. Change the Slope
Manipulate the line to see the slope change.

15. Change the Slope
You can also click on the coordinates and input
new ones to see the effect on the slope.