Solve the Problem. -A Domed Ceiling Is a Parabolic Surface. for the Best

question 57

Multiple Choice

Solve the problem.
-A domed ceiling is a parabolic surface. For the best lighting on the floor, a light source is to be placed at the focus of the surface. If 9 m down from the top of the dome the ceiling is 8 m wide,
Find the best location for the light source.

• A) 1.8 m down from the top
• B) 0.4 m down from the top
• C) 1.2 m down from the top
• D) 0.8 m down from the top

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