anonymous
  • anonymous
The function f(x) = −x2 + 48x − 432 models the profit, in dollars, a game developer makes for selling a new game, where x is the number of games sold and f(x) is the amount of profit. Part A: Determine the vertex. What does this calculation mean in the context of the problem? (5 points) Part B: Determine the x-intercepts. What do these values mean in the context of the problem? (5 points) PLEASE HELP ME!!!! :)
Mathematics
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anonymous
  • anonymous
The function f(x) = −x2 + 48x − 432 models the profit, in dollars, a game developer makes for selling a new game, where x is the number of games sold and f(x) is the amount of profit. Part A: Determine the vertex. What does this calculation mean in the context of the problem? (5 points) Part B: Determine the x-intercepts. What do these values mean in the context of the problem? (5 points) PLEASE HELP ME!!!! :)
Mathematics
katieb
  • katieb
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At vero eos et accusamus et iusto odio dignissimos ducimus qui blanditiis praesentium voluptatum deleniti atque corrupti quos dolores et quas molestias excepturi sint occaecati cupiditate non provident, similique sunt in culpa qui officia deserunt mollitia animi, id est laborum et dolorum fuga. Et harum quidem rerum facilis est et expedita distinctio. Nam libero tempore, cum soluta nobis est eligendi optio cumque nihil impedit quo minus id quod maxime placeat facere possimus, omnis voluptas assumenda est, omnis dolor repellendus. Itaque earum rerum hic tenetur a sapiente delectus, ut aut reiciendis voluptatibus maiores alias consequatur aut perferendis doloribus asperiores repellat.

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anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous

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anonymous
  • anonymous
can anyone show me step by step how to get the answers?
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
undeadknight26
  • undeadknight26
I forgot how to do this m8...
anonymous
  • anonymous
ok thanks anyway do you know anyone whoo does?
anonymous
  • anonymous
mathmate
  • mathmate
|dw:1438708054783:dw| You can solve for the vertex and x-intercepts using completing the square.
anonymous
  • anonymous
I'm still confused :/
mathmate
  • mathmate
I am tied up right now. Perhaps someone else could help you with completing the square!
anonymous
  • anonymous
ok thanks
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
anonymous
  • anonymous
mathmate
  • mathmate
Still no takers? :(
anonymous
  • anonymous
nope :(
mathmate
  • mathmate
Completing the square: f(x) = −x2 + 48x − 432 =-(x-24)^2+576-432 =-(x-24)^2+144 then x-24=0, or x=24 is the location of the vertex, and f(x)=144.
mathmate
  • mathmate
To find the x-intercepts, put f(x)=0, or -(x-24)^2+144=0 (x-24)^2=144 Take square roots, x-24=+144 or x-24=-144 Solve for x in each of the above cases to find the x-intercept.
anonymous
  • anonymous
thank you so much @mathmate
mathmate
  • mathmate
You're welcome! :)

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