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Find the exponential function...?

Find the exponential function f(x)=a^x whose graph goes through the point (2,4)

Thanks in advance. :)

1 Answer

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  • 8 years ago
    Favorite Answer

    if the point (2,4) goes through y=a^x, then

    4 = a^2, which means a=2

    so the exponential function is:

    f(x) = 2^x

    that's it! ;)

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