Christyy1837
14.07.2019 •
Mathematics
Anyone now how to do this problem i'm lost on it?
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Ответ:
To find the maximum profit, you need the vertex of the parabola.
The vertex can be found using the formula
where a = -.001 , b = 3, c = -1800
Part a) Profit is maximized when x = 1500.
To find Profit, plug 'x' into profit function.
Part b) Daily max Profit is $450
Next to find the break even point, when profit = 0.
Set profit function equal to 0 and solve for 'x'.
This is a quadratic equation, so use the quadratic formula.
Finally, the avg rate of change is simply the slope of the line between 2 points on the parabola. Use slope formula.
Part d) Avg rate of change = -3/10
Ответ: