Question

Does the point (2,3) lie on the graph of y= 3x - ?

Answer 1

Just substitute the values of x and y
3= 3(2)-4
3= 6-4
3= 2
it does not lie on the graph

Answer 2

Just substitute the values of x and y
3= 3(2)-4
3= 6-4
3= 2 which is not true therefore (2,3) does not lie on the graph