Question

The function f(x) = 2x + 210 represents the number of calories burned when exercising, where x is the number of hours spent exercising. The function g(x) = 2x + 125 represents the calorie deficit that occurs when following a particular diet, where x is the number of hours spent exercising. What is (f + g)(3)? Explain.

Answer 1

(f+g)(3) = 347

Explanation:

(f+g)(3) = f(3) +g(3) = (2·3 +210) +(2·3 +125) = 216 +131

(f+g)(3) = 347

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The sum of two functions is the sum of their individual values.