Answer :
9514 1404 393
Answer:
30.00
Step-by-step explanation:
For quadratic ax²+bx+c, the vertex (extreme value) lies on the vertical line ...
x=-b/(2a)
For this quadratic, that is ...
x = -600/(2(-10)) = 30
The widgets should be sold for 30.00 for maximum profit.
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The graph shows the profit is a maximum for x=30.
