$\"\"$

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(a)

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Observe the graph.

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The graph represents derivative curve of $\"\"$ .

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The value of the derivative of the function at $\"\"$ is $\"\"$ .

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Hence, $\"\"$ .

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$\"\"$

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(b)

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Observe the graph.

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The graph represents derivative curve of $\"\"$ .

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The value of the derivative of the function at $\"\"$ is $\"\"$ .

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Hence, $\"\"$ .

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$\"\"$

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(c)

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$\"\"$ .

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$\"\"$ represents the slope of the function $\"\"$ .

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$\"\"$ represents slope of the function $\"\"$ at $\"\"$ .

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Slope of the function $\"\"$ at $\"\"$ is $\"\"$ .

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$\"\"$

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(d)

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$\"\"$ .

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$\"\"$ represents the slope of the function $\"\"$ .

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$\"\"$ represents slope of the function $\"\"$ at $\"\"$ .

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Slope of the function $\"\"$ at $\"\"$ is $\"\"$ .

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$\"\"$

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(e)

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$\"\"$ represents the slope of the function $\"\"$ .

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$\"\"$ in the interval $\"\"$ then the function $\"\"$ is also increasing in the interval $\"\"$ .

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Therefore $\"\"$ .

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$\"\"$ .

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$\"\"$ is positive.

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$\"\"$

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(f)

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$\"\"$ represents the slope of the function $\"\"$ .

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No, it is not possible to calculate $\"\"$ from the graph.

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$\"\"$

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(a) $\"\"$ .

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(b) $\"\"$ .

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(c) Slope of the function $\"\"$ at $\"\"$ is $\"\"$ .

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(d) Slope of the function $\"\"$ at $\"\"$ is $\"\"$ .

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(e) $\"\"$ is positive.

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(f) No, it is not possible to calculate $\"\"$ from the graph.