Linear equation and system of inequalities


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.

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Algebra: Linear equation and system of inequalities
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