An inequality involve one of the four symbols.
> , ≥ , < or ≤
The following statements illustrate the meaning of each of them.
x > 1 : x is greater than 1.
x ≥ -3 : x is greater than or equal to -3
x < 7 : x is less than 7
x ≤ -9 : x is less than or equal to -9
Inequalities can be represented on a number line , as shown in the following applet.
Note that solid mark(●) , is used to show that this value is included and hollow mark(Ο) is used to show that this value is not include.
The following statements illustrate the meaning of each of them.
x > 1 : x is greater than 1.
x ≥ -3 : x is greater than or equal to -3
x < 7 : x is less than 7
x ≤ -9 : x is less than or equal to -9
Inequalities can be represented on a number line , as shown in the following applet.
Note that solid mark(●) , is used to show that this value is included and hollow mark(Ο) is used to show that this value is not include.
