$\"\"$

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a.

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Observe the graph :

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The transverse axis is vertical.

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Standard form of vertical hyperbola is $\"\"$ .

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The vertices of the hyperbola is $\"\"$ and $\"\"$ .

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The centre of the hyperbola is midpoint of vertices $\"\"$ and $\"\"$ .

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Center of the hyperbola is $\"\"$ .

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Distance between one of the vertices $\"\"$ to the center $\"\"$ is $\"\"$ .

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$\"\"$

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Length of the conjugate axis of a hyperbola is $\"\"$ units.

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$\"\"$

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$\"\"$ .

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Substitute $\"\"$ , $\"\"$ and $\"\"$ in $\"\"$ .

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$\"\"$

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Thus, equation of hyperbola is $\"\"$ . $\"\"$

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b.

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Each unit on the coordinate plane represents $\"\"$ .

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The length of the narrowest width of the building is $\"\"$ units.

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Thus, length of the narrowest width of the building is $\"\"$ .

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$\"\"$

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a. Equation of hyperbola is $\"\"$ .

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b. Length of the narrowest width of the building is $\"\"$ .