math
posted by steve .
the domain and range of f(x)=(e^x)2

Start with the base function: y=e^x.
The range of y=e^x is (0, infinity).
If you have y=e^x, that flips the function over the y axis, which does not change the range.
Now factor in the 2. That shifts the function down, so subtract 2 from the range: (2, infinity) 
Oops, forgot the domain.
e^x exists for all real values of x, so e^x does also.
Therefore, the domain is (infinity, infinity)
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