In mathematics a linear inequality is an inequality which involves a linear function.

Definitions

When two expressions are connected by 'greater than' or 'less than' sign, we get an inequation.

When operating in terms of real numbers, linear inequalities are the ones written in the forms

 or,��

where f(x) is a linear functional in real numbers and b is a constant real number.

The above are commonly written out as

or

Sometimes they may be written out in the forms

or

Here  are called the unknowns, 

 are called the coefficients, and b is the constant term.

A linear inequality looks exactly like a linear equation, with the inequality sign replacing the equality sign. (Our solved example in mathguru.com uses this concept)

http://en.wikipedia.org/wiki/Linear_inequality

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