Final answer:
Yes, f(x)=2.3^x is a function because each input has exactly one output.
Step-by-step explanation:
Yes, f(x)=2.3^x is a function.
A function is a rule or a relation in which each input has exactly one output. In the given function, for any value of x that we input, there will be a corresponding unique value of f(x) as the output.
For example, if we input x = 2 into the function, we get f(2) = 2.3^2 = 5.29. If we input x = -1, we get f(-1) = 2.3^(-1) = 0.43. Hence, each input x gives us a unique output f(x), making it a function.