Draw the graph of the line y = x and show that the point (2, 3) does not lie on it.

Question

Philoid · Accepted Answer

When x = – 4 then, y = x

⇒ y = – 4

When x = – 2 then, y = x

⇒ y = – 2

When x = 0 then, y = x

⇒ y = 0

When x = 2 then, y = x

⇒ y = 2

When x = 4 then, y = x

⇒ y = 4

Thus we have the following table,

X	– 4	– 2	0	2	4
Y	– 4	– 2	0	2	4

On plotting we get the following graph,

Clearly from the graph, (2,3) does not lie on the line y = x