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

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

- Algebra 1 -
**Reiny**, 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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