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
  • Stacey Warren - Expert brainly.com
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SOLVED
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katieb
  • katieb
I got my questions answered at brainly.com in under 10 minutes. Go to brainly.com now for free help!
anonymous
  • anonymous
@sweetburger
anonymous
  • anonymous
@queenofnothing
anonymous
  • anonymous
@undeadknight26

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anonymous
  • anonymous
can anyone show me step by step how to get the answers?
anonymous
  • anonymous
@taramgrant0543664
anonymous
  • anonymous
@ganeshie8
anonymous
  • anonymous
@freckles
anonymous
  • anonymous
@mathmate
undeadknight26
  • undeadknight26
I forgot how to do this m8...
anonymous
  • anonymous
ok thanks anyway do you know anyone whoo does?
anonymous
  • anonymous
@superman36
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
@marieislearning
anonymous
  • anonymous
@AliceCullen
anonymous
  • anonymous
@KAKES1967
anonymous
  • anonymous
@Lollygirl217
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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