Question 121909
For drawing a line we need points .
We find the points and join them to get the line for the given equation.

Equation is x = 4

We can find the points (x, y)  by giving different values to x or y and finding corresponding values of y and x

The equation says x = 4    (it means x has a fixed value)
So whatever value of y we take the x can take only 4

Our points become   (4, 1)  (4, 4)   (4, 0)  and so on..  

When we join these points we see that it is a vertical line - parallel to y-axis.


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