$\"\"$

(a)

The equation is $\"\"$ and the point is $\"\"$ .

To check the solution, substitute the values of $\"\"$ in the original equation.

$\"\"$

The above statement is false.So the point $\"\"$ is not a solution of the equation $\"\"$ , and

The point $\"\"$ is does not lie on the graph of $\"\"$ .

$\"\"$

(b)

The equation is $\"\"$ and the point is $\"\"$ .

To check the solution, substitute the values of $\"\"$ in the original equation.

$\"\"$

$\"\"$ .

The above statement is true.So the point $\"\"$ is a solution of the equation $\"\"$ , and

The point $\"\"$ is lies on the graph of $\"\"$ . $\"\"$

(a) The point $\"\"$ is does not lie on the graph of $\"\"$ .

(b) The point $\"\"$ is lies on the graph of $\"\"$ .