TI-Nspire App Tutorial

Slope-Intercept Form with Sliders

Summary

• In this tutorial, you’ll explore the slope-intercept form of a linear function using sliders. The steps in the tutorial include:

– Creating a Graph Window.

– Configuring two sliders.

– Linking the sliders to a linear function in slope-intercept form.

– Manipulating the Sliders.

Create a Graph Window

Click on the + tool to activate this menu.

Create the First Slider

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

Create the First Slider

Click on Menu. Select Actions > Insert Slider.

Configure the First Slider

This slider is for m in the slope-intercept form. Configure as shown. Press OK.

Create the Second Slider

Click on Menu. Create the second Slider.

Configure the Second Slider

This slider is for b in the slope-intercept form. Configure it as shown. Click OK.

Move the Sliders

Press and hold the Slider to bring up the option for moving it. Select Move and reposition the sliders.

Move the Sliders

Repeat with the second Slider and place both in the area shown above.

Input the Slope-Intercept Form

Activate the Function Entry Line by clicking on + in the upper-right-hand corner. Input the equation shown.

y =m • x + b

Input the Slope-Intercept Form

The graph shown uses the values for m and b in the sliders.

Manipulate the Sliders

Change the values on the sliders by sliding the arrows at the bottom of each Slider. The graph will

update.