Pia wants to invest $250 and considers four different investment accounts. The models below predict the account value, A(t), in dollars, after t years, for each investment option. Investment 1: A(t)=250(1.08)t Investment 2: A(t)=250(0.8)t2 Investment 3: A(t)=250(0.91)3t Investment 4: A(t)=250(1.3)0.25t

The change in water level of a lake is modeled by a polynomial function, w(x). described how to find the x-intercepts of w(x) and how to construct a rough graph of w(x) so that the parks department can predict when there will be no chage in the water level. you may create a sample polynomial of degree 3 or higher to use in your explanations.