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