# Composite Functions

**Question**

Given two functions,

- f(x) = x
^{2} - g(x) = x + 1

solve the following composite functions question.

- fg(x)
- fg(1)
- gf(1)
- gf(x)
- ff(1)

**Answer**

- x
^{2}+2x+1 - 4
- 2
- x
^{2}+1 - 1

*Note: *

*A composite function combines multiple functions and formed another function.**The output of one function will normally become the input of the other function after the combination.*

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