SOLUTION: an arch in the form of an inverted parabola and has a span of 12 feet at the base and a height of 12 feet. determine the vertical clearance of the parabola 4 feet from the vertical

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Question 1086406: an arch in the form of an inverted parabola and has a span of 12 feet at the base and a height of 12 feet. determine the vertical clearance of the parabola 4 feet from the vertical centerline
Answer by ikleyn(52803)   (Show Source): You can put this solution on YOUR website!
.
The equation of this parabola is 

p(x) = 

(6 units to the left from the vertical centerline to one root and 6 units to the right to the other root;
 and the vertex is at 12 ft up).


Now, the question asks about p(4), and you can easy calculate it:

p(4) =  =  =   =  ft.

Answer.   Verical clearance of the parabola  4 feet from the vertical centerline is    ft.


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