Question

I need help with a practice

Answer 1

`\begin{gathered} f(x)=3\cdot2^x \\ \text{Let's find the first values:} \\ x=0 \\ f(0)=3\cdot2^0=3 \\ f(1)=3\cdot2^1=6 \end{gathered}`

The y-intercept = 3, and f(1) = 6, therefore the only graph which satisfies that is the graph D.