TI-84 CALCULATOR GUIDE

Set the window on your TI-84

Set Xmin, Xmax, Ymin and Ymax on a physical TI-84. Learn when to use ZStandard or ZoomFit, and how to fix WINDOW RANGE.

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What would you like to do?

Draw a functionEnter a function and see its graph.Fix a missing graphChoose a viewing window that shows your function.Solve an equation with its graphFind roots where the curve meets the x-axis.

These three guides cover function graphing, viewing windows and graph zeros. Key names are shown as printed on the calculator; screen layouts can vary with software versions.

Before you start: function mode

Press MODE. Use the arrow keys to select FUNC (Func on some versions) and press ENTER. Press 2nd, then MODE (QUIT) to leave the menu. These examples use ordinary function graphing. Preserve any work you need before changing entries or settings.

Fix a missing graph

0 of 4 steps marked done

  1. 1

    Enter a graph outside the standard view

    Y=X,T,θ,nx²+20

    In Y=, use an unused enabled Y line to enter X² + 20. Preserve existing entries and turn unrelated functions and Plot labels off. In the standard −10 to 10 view, this curve is above the visible area.

    What you should see

    The expression is entered. A blank standard view is possible because the lowest Y value is 20.

  2. 2

    Set the viewing rectangle

    WINDOW(-)↓

    Press WINDOW. Set Xmin = −5, Xmax = 5, Xscl = 1, Ymin = −5, Ymax = 30 and Yscl = 5. Use the (-) negative-number key for −5. Leave Xres unchanged.

    What you should see

    Each minimum is smaller than its maximum. Xscl and Yscl are positive.

  3. 3

    Draw again

    GRAPH

    Press GRAPH to draw with the new window. You do not need to change the function.

    What you should see

    The vertex at (0, 20) and part of the curve around it are visible.

  4. 4

    Know how to restore the standard view

    ZOOM6:ZStandard

    ZOOM → 6:ZStandard restores both axes to −10 through 10. Try it if you want to compare views; X² + 20 can disappear again because the standard window does not suit this example.

    What you should see

    The viewing window changes; your function stays X² + 20.

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TI-84 Window Settings & WINDOW RANGE Fix | HowSolve