Skateboard Revenue: A skateboard shop sells about 50 skateboards per week for the price advertised. For each $1 decrease in price, about 1 more skateboard per week is sold. The shop's revenue can be modeled by y=(70-x) (50+x). Use vertex form to find how the shop can maximize weekly revenue.

[I can get this into vertex form, but I'm not understanding how to read the vertex form of the equation to answer the question]

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13-02-2014
Mathematics

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Skateboard Revenue: A skateboard shop sells about 50 skateboards per week for the price advertised. For each $1 decrease in price, about 1 more skateboard per week is sold. The shop's revenue can be modeled by y=(70-x) (50+x). Use vertex form to find how the shop can maximize weekly revenue.

[I can get this into vertex form, but I'm not understanding how to read the vertex form of the equation to answer the question]

Sagot :

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Аноним Аноним · Answer 1 · 2014-02-13T17:57:14-05:00

Аноним Аноним

13-02-2014

Well, the form [tex]ax^2+bx+c[/tex] gives the maximum (if a<0) at coordinates [tex](\frac{-b}{2a};\frac{-\Delta}{4a})[/tex], where [tex]\Delta=b^2-4ac[/tex]. If a>0, the same formula gives the minimum (there's no maximum)

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njarma004 njarma004 · Answer 2 · 2020-01-30T09:52:47-05:00

njarma004 njarma004

30-01-2020

Answer:

fds

Step-by-step explanation:

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Sagot :

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