Question

Which of the functions is an exponential function? F(x)=-3x^-1F(x)=-3(2)^2F(x)=-3(1)^xF(x)=-3x^2

Answer 1

For this problem we recall the definition of an exponential function:

`\begin{gathered} f(x)\text{ is an exponential function if } \\ f(x)=a\cdot b^(kx) \\ \text{Where a}\\e0,\text{ k}\\e0\text{ and b}\\e1 \end{gathered}`

Answer: F(x)= - 3 (2)^x