anonymous
  • anonymous
Help plz fan and medal
Mathematics
schrodinger
  • schrodinger
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anonymous
  • anonymous
The function f(x) = −x2 + 50x − 264 models the profit, in dollars, a yoga studio makes for selling monthly memberships, where x is the number of memberships 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)
anonymous
  • anonymous
I only need help on Part B
anonymous
  • anonymous

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anonymous
  • anonymous
anonymous
  • anonymous
really :/ no one :/
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
Sorry, I forgot how to do this. I'd help you if I could.
anonymous
  • anonymous
Oh ok thanks man ._.
anonymous
  • anonymous
Alright dude :P
phi
  • phi
\[ f(x) = −x^2 + 50x − 264 \] this is a parabola with the shape of \( \cap\), so it has a peak (called the vertex) the x value of the vertex is found using \[ x= \frac{-b}{2a} \] where a and b are defined by matching your parabola with \[ y=a x^2 + bx + c \]
Setsuna-Yuregeshi
  • Setsuna-Yuregeshi
@DarkMoonZ Sorry, I forgot that this was a quadratic function. Ugh. I did know how to do this. Sorry, cuz i saw x2 i assumed it wasn't
anonymous
  • anonymous
Oh ok then lol
triciaal
  • triciaal
Part B in the context of the problem x-intercepts means when y = 0 the subscriptions sold when no profit is made

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