6 Types of Functions in Math

The types of functions we need to know are:

Constant Function
Identity Function
Modulus Function
Polynomial Function
Even Function
Odd Functions

1. Constant Function

The constant function is a function f expressed in the formula f(x) = c, with x a constant. The graph is if painted in a coordinate axis where the x axis domains are parallel to the x axis.

2. Identity Function

The identity function is a function expressed in the formula f(x) = x. The identity function is often expressed by the symbol I so that I(x) = x.
Here is a graph of the identity function:

3. Modulus Function

The modulus function is a function f which contains the form of absolute value.

Example of modulus function
Draw a function graph of f(x) = | 2x - 4 | !

Answer :
Draw the first graph y = 2x - 4, after which the graph lies beneath grow x, we are positive by reflecting the graph below the x axis with the mirror is the x axis.
Gambar tebel fungsi modulus

4. Polynomial Function

The polynomial function is a function expressed in the form of :

If n = 1 then the linear function is formed (the graph is a straight line)
If n = 2 then the quadratic function is formed (the graph is parabolic)

5. Even Function

Even function is a function f where applicable f(x) = f(-x). Which is an even function, among others, the power-rank function of the variable is said to be even. If the function is a fraction, then it can be said even function if the variable on the numerator and the denominator are all or even all odd.

6. Odd Functions

Odd function is a function whereby f(-x) = -f(x) is applied. Which is an odd function, among other functions that all variables are odd rank. If the function is a fraction, then it can be said an odd function if the variable is at the odd-numbered numerator and the variable of the denominator is even or vice versa.

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