Wednesday, August 19, 2009

develop and solve liner model solutions

To develop and solve liner model solutions ,we should know few basics of polynomials and types of polynomials.

polynomial:-
If p(x) is a polynomial in x.The highest exponent of x in p(x)
is called the degree of polynomial p(x).

For example :- 4x+2 is a polynomial in the unknown x and of degree 1.

This math help gives more explanation along with an example.
To explain more clearly ,a polynomial is a finite length expression constructed from variables (also known as indeterminates and constants, by using the operations of addition, subtraction, multiplication, and constant non-negative whole number exponents. For example, x2 − 4x + 7 is a polynomial, but x2 − 4/x + 7x3/2 is not, because its second term involves division by the variable x and also because its third term contains an exponent that is not a whole number.

Types of polynomial

Linear :- A polynomial of degree 1 is called linear

Example:-

3x+4x-12=2

 7x-12 = 2

   +12   +12

---------------

   7x = 14

divide with 7 on both sides

we get x=2
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