Respuesta :
Answer:
A. x2 + x – 4
Step-by-step explanation:
I took the assignment on Edgeniuty 2020.
For a function f(x) = x2 + 1 and g(x) = 5 – x the value of (f + g)(x) is as follows:
(f + g)(x) = x² - x + 6
f(x) = x² + 1
g(x) = 5 - x
Therefore,
Function
A function relates input and output. f(x) and g(x) are ways to represent function. Therefore, f(x) = x² + 1 shows that the function f takes x and sum x squared and 1.
The function g also takes the difference of 5 and x.
(f + g)(x) = f(x) + g(x)
Therefore,
(f + g)(x) = x² + 1 + 5 - x
(f + g)(x) = x² - x + 6
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