$\"\"$

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Observe the graph.

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The two points on the graph of the function are $\"\"$ and $\"\"$ .

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The slope of the function is $\"\"$ .

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The slope of the function with points $\"\"$ and $\"\"$ :

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$\"\"$ .

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$\"\"$ .

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Find the line equation.

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Point slope form of line equation is $\"\"$ .

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Substitute the points $\"\"$ and $\"\"$ in line equation.

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$\"\"$

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The line equation $\"\"$ .

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$\"\"$

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The line equation $\"\"$ .

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Apply derivative on the each side with respect to $\"\"$ .

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$\"\"$

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Apply derivative on the each side with respect to $\"\"$ .

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$\"\"$

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Graph :

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Graph the first derivative function $\"\"$ , second derivative function $\"\"$ and $\"\"$ .

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$\"\"$

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\

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The first derivative function is $\"\"$ .

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The second derivative function is $\"\"$ .

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Graph of the derivative function is

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$\"\"$