Mathematics
Grade10
Easy

Question

If f(x) = x - 4 , g(x) = 2x + 3 , evaluate f(g(x)).
 

  1. 2x + 7
  2. 2x - 7 
  3. 2x + 1
  4. 2x - 1

Hint:

Given f(x) = x - 4 , g(x) = 2x + 3
f(g(x)) = f(2x + 3) = (2x + 3) - 4 = 2x + 3 - 4 = 2x - 1.

The correct answer is: 2x - 1


    To find the value of f(g(x)) for the functions f(x) = x - 4 and  g(x) = 2x + 3.

    Hence, the value of f(g(x)) for the functions f(x) = x - 4 and  g(x) = 2x + 3 is 2x-1.

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