Hi Nagaraj, please check the link.

For your question, 

we need to plot

x - 1 = 8

i.e. x = 8 + 1 = 9

So, we need to plot x = 9

Finding points which satisfy this equation,

Value of x is always 9, and y can have any value. 

So, points satisfying this equation are (9, 0), (9, 1), (9, -1), (9, -2)...

If we join these points, we can get the graph of the line.

Hi Nagaraj,

Hint - https://www.teachoo.com/1121/425/Ex-4.4--2---Give-the-geometric-representation-of-2x%C2%A0--9-=-0/category/Ex-4.4/