Figure 15 shows the normal high temperature for St, Louis, Missouri, as a function of time (measured in days beginning January 1).

(a) What is the approximate rate change in the normal high temperature on March 2 (i.e., on day number 61)? What are the units of this rate of change?
(b) What is the approximate rate of change in the normal high temperature on July 10 (i.e., on day number 191)?
(e) In what months is there a moment when the rate of change is equal to 0?
(d) In what months is the absolute value of the rate of change the greatest?

Transcribed Image Text:

100 匊 Day of the