Respuesta :

Here, put y = 0, 
0 = 3x - 9
3x = 9
x = 9/3 = 3

Now, put x = 0, 
y = 3(0) -9 = -9

So, Mark the coordinates: ( 0, -9) & (3, 0)
& Draw the line. Graph is done!

Hope this helps!