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Mathematics 20 Online
OpenStudy (anonymous):

6.) the following function represents the profit P(n) in dollars that a concert promoter makes by selling tickets for n dollars each: P(n)=-250n^2+3,250n-9,000 Part A: What are the zeroes of the above function and what do they represent? Show your work. (4 points) Part B: Find the maximum profit by completing the square of the function P(n ). Show the steps of your work. (4 points) Part C: What is the axis of symmetry of the function P(n )?

OpenStudy (anonymous):

@tHe_FiZiCx99

OpenStudy (anonymous):

@tHe_FiZiCx99 can you help?

OpenStudy (anonymous):

@wolfe8

OpenStudy (the_fizicx99):

Kinda long x_x

OpenStudy (anonymous):

so ill take that as a no lol

OpenStudy (the_fizicx99):

Set -250n^2+3,250n-9,000 equal to zero and factor it. 0 = -250n^2+3,250n-9,000 And those are your x intercepts or "solutions"

OpenStudy (anonymous):

that's to answer part a?

OpenStudy (anonymous):

@nincompoop @ParthKohli @SithsAndGiggles

OpenStudy (the_fizicx99):

Yes that's for part A, they're the roots or zeros of your function. They represent your x intercepts

OpenStudy (anonymous):

I factored 0 = -250n^2+3,250n-9,000 and got -250(n-4) (n-9) is that the answer for part a? @tHe_FiZiCx99

OpenStudy (anonymous):

is it?

OpenStudy (the_fizicx99):

Yes. I got -250((n-9)(n-4))

OpenStudy (anonymous):

can you help me with part b?

OpenStudy (the_fizicx99):

Yeah

OpenStudy (the_fizicx99):

Find the vertex by completing the square and putting it in vertex form.

OpenStudy (anonymous):

how do I complete the square?

OpenStudy (the_fizicx99):

Do you know the steps?

OpenStudy (the_fizicx99):

@Jadeishere ._. My Dad's home :3 Gtg ^_^ Baii vertex form is: f(x) = a(x - h)^2 + k

OpenStudy (jadeishere):

I have to get off soon, like I said, like, 5 minutes soon

OpenStudy (anonymous):

no @tHe_FiZiCx99

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