Refer to Fig. 1, which shows an enlarged version of one portion of the curve in Fig. 2. Es...

Refer to Fig. 1, which shows an enlarged version of one portion of the curve in Fig. 2. Estimate the price of one barrel of crude oil on April 3, 2008, and the rate at which the price was rising on that day. (Your answer for the rate should be in dollars per day.)

Figure 1 Price of crude oil.

Figure 2 Price of crude oil, June 1, 2007, to April 1, 2008.