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Algebra Question 5e

5. Solve the following inequalities and sketch the sketch the graphs on the number line.

 e)  

 

5.  Solve the following inequalities and sketch the sketch the graphs on the number line.

e)  

Answer: 

e)  

   

5. Solve the following inequalities and sketch the sketch the graphs on the number line.

 e)  

Solution:

e)      i.e.        or    

That is     or     i.e.  

    

The Real Number Line

The point on the number line which corresponds to a given number is called the graph of the number.

 

Notation
The symbol denotes is greater than;
The symbol denotes is less than;
The symbol denotes is greater than or equal to;
The symbol denotes is less than or equal to.