Chapter 11.2, Problem 60E

Work these exercises.

Stock Prices The opening price of a stock typically differs somewhat from the closing price the previous day. The accompanying graph shows the stock price $f\left(t\right)$ for Visa Inc. over two trading days, where $t=0$ corresponds to the opening of trading on April 12, 2016. Each trading day lasts 6.5 hours, beginning at 9:30 am. And concluding at 4:00 pm, Eastern time. Let t represent the time (in hours) that the market has been open for trading, so $t=13$ represents the close of trading on April 13, 2016. Approximate the given limits. (Data from: www.morningstar.com.)

a. $\text{limt}\to \text{6}\text{.5-f}\left(\text{t}\right)$

b. $\text{limt}\to \text{6}\text{.5+f}\left(\text{t}\right)$

c. $\text{limt}\to \text{6}\text{.5f}\left(\text{t}\right)$