$\"\"$

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(a)

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

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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

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

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(b)

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

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

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$ .

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Since the above statement is true, the point $\"\"$ is a solution of $\"\"$ and

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

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

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