Trevor is tracking the value of a stock he invested in over the course of one business day (8 hours). The value of the stock can be found by adding these two functions, where t represents time in hours:

f(t) = 12(1.20)^t

g(t) = -4.5t

Part A

Add the two functions and call the resulting functionv(t).

Part B

Graph the function you found in part a by going to your math tools and opening the Graph tool. Adjust the scale so that both axes start at 0 and continue far enough to view the polynomial correctly.

Part C

Using the graph, what was the initial value of the stock?

Part D

About what was the final value of the stock for the day?

Part E

Does the value of the stock increase or decrease from where it started the day? By about how much?

Part F About when was the value of the stock at its lowest, and what was its value?