A Solar Oven Uses a Parabolic Reflector to Focus the Sun's

question 53

Multiple Choice

A solar oven uses a parabolic reflector to focus the sun's rays at a point 5 inches from the vertex of the reflector (see figure) . L = 5 inches ​
Write an equation for a cross section of the oven's reflector with its focus on the positive y axis and its vertex at the origin.

• A)​ \[y = \frac { 1 } { 5 } x ^ { 2 }\] ​
• B) \(y = 5 x ^ { 2 }\)
• C) \(y = 20 x ^ { 2 }\) ​
• D) \(x ^ { 2 } = 20 y\)
• E) \[x ^ { 2 } = 5 y\]

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