x = 5 means the x co-ordinate is fixed and we can take any value of y

to draw graph we will require two points

let us consider point P whose y co-ordinate be 2 and x co-ordinate is already given as 5

⇒ P (5, 2)

Now consider point Q whose y co-ordinate be 4 and x co-ordinate is already given as 5

⇒ Q (5, 4)

Plot points P and Q and join them to get the graph of x = 5