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Math Help - TI-84 graphing question

  1. #1
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    TI-84 graphing question

    How would I graph the line x=4 on the TI-84 graphing calculator?
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  2. #2
    MHF Contributor
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    Do you have a manual? If you have worked any of the examples, especially the fast start examples right in the front of the book, they show how to make many interesting graphs.

    I couldn't find my 84, but on my 83, this is what it took.

    1) Turn it on.
    2) Press the [Y=] button
    3) Enter 4 next to the "\Y1="
    4) Press the [Draw] button.
    5) With any luck, your window and view settings will shot it to you.

    Please read your owner's manual. There is a ton of useful stuff in there. Work ALL the examples. EVERY ONE.

    Okay, just kidding. For a vertical line, get to the blank home screen and press [2nd][PRGM][4][4][ENTER]
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  3. #3
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    haha thanks
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  4. #4
    Newbie beardedoneder's Avatar
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    Quote Originally Posted by MATNTRNG View Post
    How would I graph the line x=4 on the TI-84 graphing calculator?
    Press [Y=]
    At any of the empty Y variables, enter 1E10(x-4)
    Press [Graph]

    You'll find the rational for this approach here, Graphing Calculator - Graphing Vertical Lines
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