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Posted by on Saturday, January 19, 2013 at 10:52pm.

What is the domain and range of f(x)=3^x-4?

  • Algebra 1 - , Saturday, January 19, 2013 at 11:37pm

    You should have an idea what
    f(x) = 3^x looks like

    its domain is any real number of x
    the range is y>0

    so you have f(x) = 3^x - 4 , which just drops the curve down 4 units
    the domain is still x ∈ R , the domain is y > -4

    if you meant: f(x) = 3^(x-4) , then y = 3^x was shifted to the right 4 units.
    domain still x ∈ R, range : y > 0

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