Question:
Linear equation and system of inequalities
A target heart rate T that is half a person's maximum heart rate is given by T=110 - 1/2A where A is a person's age.
(a) What is T for a person 30 years old? 50 years old?
(b) Sketch a graph of the system of inequalities.
T > 110 - 1/2A
T < 220 - A
Assume that A is between 20 and 60.
(c) Interpret your graph.