Draw the graph of 2x – 3y = 4. From the graph, find whether x = – 1, y = – 2 is a solution or not.

Given equation, 2x – 3y = 4


3y = 2x – 4



When x = – 4, then,






y = – 4


When x = – 1, then,






y = – 2


When x = 2, then,





y = 0


When x = 5, then,






y = 2


Thus we have the following table,


X



– 4



– 1



2



5



Y



– 4



– 2



0



2



On plotting these points we have the following graph,



Clearly, from the graph ( – 1, – 2) is the solution of the line 2x – 3y = 4


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