Write an equation in standard form of the parabola that has the same shape as the graph of f(x)=9x^2, but with (1,5) as the vertex.

At the beginning of year 1, carlos invests $600 at an annual compound interest rate of 4%. he makes no deposits to or withdrawals from the account. which explicit formula can be used to find the account's balance at the beginning of year 5? what is, the balance?