Types of Functions:
1. Polynomial Function
-It is defined by the equation f(x) = anxn + an-1xn-1 + an-2xn-2+…+ a1x + a0, where n is a
non-negative integer and a0, a1, … an are real numbers.
-The symbol f(x) is read as “the function of x”
Kinds of Polynomial Function:
a. Linear function
odefined by f(x) =mx + b, a polynomial in the first degree whose graph is a line
b. Quadratic function
oA polynomial function defined by f(x) = ax2 + bx + c, also known as a
polynomial function in the second degree whose graph is a parabola
a) b)
Graph a represents a linear function, and graph b represents a quadratic function
2. Constant function
-Is a special polynomial function and defined by the equation bf(x) =c, where c .
In this function, each x value corresponds to one and only one y value. The graph of
which is a horizontal line
3. Rational Function:
- it is defined by the equation
f
(
x
)
=g(x)
h(x)
wherein g(x) and h(x) are both polynomial
functions. The function
f
(
x
)
=x+2
x−2
is an example of a rational function
