$\"\"$

(a)

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

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

$\"\"$

$\"\"$ . \ \

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

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

$\"\"$

(b)

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

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

$\"\"$

$\"\"$ . \ \

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

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

(a) The point $\"\"$ is lie on the graph of $\"\"$ .

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