$\"\"$

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(a).

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The distance is $\"\"$ and the angle of elevation is $\"\"$ .

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Observe the figure:

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$\"\"$

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The length of opposite side is $\"\"$ and the length of hypotenuse is $\"\"$ .

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Substitute all the values into $\"\"$ .

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$\"\"$ .

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$\"\"$

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The function $\"\"$ as a function of $\"\"$ is $\"\"$

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$\"\"$

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(b).

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Graph:

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Graph the function $\"\"$ and $\"\"$ :

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$\"\"$

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$\"\"$

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(c).

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Find the distance $\"\"$ angle of elevation $\"\"$ .

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Susbstitute $\"\"$ in the function $\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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$\"\"$

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(a). $\"\"$

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(b).

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$\"\"$

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(c). $\"\"$ .