bobobobob75 bobobobob75
  • 25-09-2020
  • Mathematics
contestada

Given f(x) = x + 9 and g(x) = x2 find (gºf)(x).

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altavistard
altavistard altavistard
  • 25-09-2020

Answer:

g(f(x)) = (x + 9)^2 or x^2 + 18x + 81

Step-by-step explanation:

(gºf)(x) is the "c .... " of two functions f(x) and g(x):  f(x) is the input to g(x).

We start with g(x):  g(x) = x^2.  We replace the first x with f(x) and the second x with x + 9:

g(f(x)) = (x + 9)^2 or x^2 + 18x + 81

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