$\"\"$

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(a)

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The function is $\"\"$ .

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Consider LHS.

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$\"\"$

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Additive interval property:

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If f is integrable on the three closed intervals determined by $\"\"$ and $\"\"$ then $\"\"$

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$\"\"$ .

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$\"\"$ and $\"\"$ .

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$\"\"$

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(b)

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The function is $\"\"$ .

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Apply Additive integral property: $\"\"$ .

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$\"\"$

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$\"\"$ Subtract $\"\"$ from each side .

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$\"\"$

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Apply formula $\"\"$ .

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$\"\"$

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$\"\"$

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$\"\"$ and $\"\"$ .

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$\"\"$

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(c) Find $\"\"$ .

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Graph the function: $\"\"$ .

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$\"\"$

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(a) $\"\"$ and $\"\"$ .

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(b) $\"\"$ and $\"\"$ .