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anonymous
 one year ago
At travel speed "x" (constant velocity in mph), there are "y" accidents at nighttime for every 100 million miles of travel where y is given by y=6.1x^2+752x+22620. At what travel speed does the greatest number of accidents per 100 million miles traveled occur?
anonymous
 one year ago
At travel speed "x" (constant velocity in mph), there are "y" accidents at nighttime for every 100 million miles of travel where y is given by y=6.1x^2+752x+22620. At what travel speed does the greatest number of accidents per 100 million miles traveled occur?

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phi
 one year ago
Best ResponseYou've already chosen the best response.0y=6.1x^2+752x+22620. this is the equation of a parabola with the shape \( \cap \) it has a peak at the vertex when \[ x = \frac{b}{2a} \] where a,b, and c are \[ y = a x^2 +bx +c \] match that general from with your parabola to find a and b then find the x value of the vertex.
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