Science:Math Exam Resources/Courses/MATH103/April 2015/Question 02 (e)/Statement

The concentration of a certain hormone in the blood changes periodically over 24h. The graph of the production rate p(t) and removal rate r(t) of the hormone are shown below.

graph

In the figure, clearly mark the times

(i) $t_{1}$ at which the total concentration of the hormone is highest, and

(ii) $t_{2}$ at which the hormone concentration is increasing at the fastest rate.