$\"\"$

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(a)

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The function values $\"\"$ and $\"\"$ .

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Thus, the points are $\"\"$ and $\"\"$ .

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Slope formula is $\"\"$ .

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Substitute $\"\"$ and $\"\"$ in above formula. \ \

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$\"\"$

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$\"\"$

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$\"\"$ . \ \

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The point - slope form of the line equation is $\"\"$ .

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Substitute corresponding values in above formula.

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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Thus, the linear function is $\"\"$ .

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$\"\"$ \ \

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(b)

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The linear function is $\"\"$ .

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Graph the function.

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Graph of the function $\"\"$ is : \ \

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$\"graph$

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$\"\"$

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(a) The linear function is $\"\"$ .

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(b) Graph of the function $\"\"$ is : \ \

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$\"graph$