A Building Has an Entry the Shape of a Parabolic $y ^ { 2 } = - 28.2 x$

question 478

Multiple Choice

A building has an entry the shape of a parabolic arch 46 ft high and 36 ft wide at the base. Find an equation for the parabola if the vertex is put at the origin of the coordinate system.

• A) \(y ^ { 2 } = - 28.2 x\)
• B) \(y ^ { 2 } = - 7 x\)
• C) \(x ^ { 2 } = - 28.2 y\)
• D) \(x ^ { 2 } = - 7 y\)

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