The Inequality

Inequality

An inequality has two values are not equal.

Let’s say that a ≠ b which show that a is not equal to b

There are other special symbols that show in what way things are not equal.

a < b says that a is less than b

a > b says that a is greater than b

(These two are known as strict inequality)

a ≤ b means that a is less than or equal to b

a ≥ b means that a is greater than or equal to b

Equal, Greater or Less Than

These are the important signs that need to know:

=	When two values are equal we use the "equals" sign	Example: 2+2 = 4
≠	When two values are definitely not equal we use the "not equal to" sign	Example: 2+2 ≠ 9
<	When one value is smaller than another we use a "less than" sign	Example: 3 < 5
>	When one value is bigger than another we use a "greater than" sign	Example: 9 > 6

Video of Inequality:

Here are few question that, you may able to try it out:

1.Complete the square in the quadratic function f given by:

f(x) = 2x² - 6x + 4

2.Find the constant k so that :
 -x² - (k + 7)x - 8 = -(x - 2)(x - 4)


3.Factor the expression:  6x² - 13x + 5 


Original Resource: 

http://www.mathsisfun.com/definitions/inequality.html

http://www.mathsisfun.com/algebra/inequality-solving.html

http://www.mathsisfun.com/equal-less-greater.html