Given the values of the linear functions f (x) and g(x) in the tables, where is (f – g)(x) positive?
(–∞, –2)
(–∞, 4)
(–2, ∞)
(4, ∞)

Given the values of the linear functions f x and gx in the tables where is f gx positive 2 4 2 4 class=

Respuesta :

From the tables, and definitions of functions, it is found that the function (f - g)(x) is positive in the interval (–∞, –2).

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  • The function (f - g)(x) is given by: [tex](f - g)(x) = f(x) - g(x)[/tex]
  • Thus, it will be positive if: [tex]f(x) > g(x)[/tex]
  • Looking at the table, and considering that it is a linear function, we have that f(x) > g(x) if x < -2.
  • Thus, (f - g)(x) is positive in the interval (–∞, –2).

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