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Math Help - Need the asymptotes and the axes intercepts Of these graphs

  1. #1
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    Need the asymptotes and the axes intercepts Of these graphs

    How do we find the equations of asymptotes and the axes intercepts? (I did the graphs via a website).

    a)



    b)



    c)



    d)

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  2. #2
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    y = 2^x - 4.


    It's important to note for exponential functions such as y = a^x that y > 0 for all x.

    So for y = 2^x - 4, if you know 2^x > 0, then what do you think 2^x - 4 is greater than?
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    Quote Originally Posted by Prove It View Post
    [tex] then what do you think 2^x - 4 is greater than?
    y= - 4
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  4. #4
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    Correct. So y = -4 is an asymptote.

    Now going back to the original equation

    y = 2^x - 4.

    To find the x intercept, let y = 0 and solve for x.

    To find the y intercept, let x = 0 and solve for y.
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