a) Find the value k of the exponential growth rate. Assume V = 271. k=[ (Round to the nearest thousandth.) Instructor tip Example: "Write an exponential function by first finding the rate of change, k, given the value is $239 in 1977 and $499 in 1985. Tip: Use V(t) = Voe^(kt) V(t) and the Vo are both dollar amounts, the tis the time it took for the original 1977 value Vo to grow to the second value in 1985, V(t), which means t=8. So you plug those 3 values into the equation and end up solving it for the k. Setup: 499 =293e^(k*8), or 499=293e (8k) Now to get k by itself: 1st step: