3. Graphical representation of inequation

The solutions of inequations can be represented on a number line by marking the true values of the solutions with different colours.
 
Let us see how the various solutions of the $x$ can be represented graphically on the number line.
 
Here, we consider the solutions belong to natural numbers. That is, every value of the solution is a natural number.

 

The coloured points on the number line shows the solutions of $x$.

 

i) When $x ≤ 4$, the solutions of $x$ are $4$, $3$, $2$, $1$, $0$…... And its graph on the number as shown below.