Mathematics
Grade10
Easy
Question
If f(x) = x - 4 , g(x) = 2x + 3 , evaluate f(g(x)).
- 2x + 7
- 2x - 7
- 2x + 1
- 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.
