vera_ewing
  • vera_ewing
Pre-calculus question
Mathematics
katieb
  • katieb
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Michele_Laino
  • Michele_Laino
I think that it is not C
Michele_Laino
  • Michele_Laino
sorry it is not B, please if we compute the first derivative, we get that your function is an incresing function, if: \[3{x^2} + 2x - 5 > 0\] please solve that inequality
Michele_Laino
  • Michele_Laino
increasing*

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vera_ewing
  • vera_ewing
x < -5/3 or x > 1
Michele_Laino
  • Michele_Laino
yes! it is an increasing function inside your intervals
Michele_Laino
  • Michele_Laino
so, what is the right option?
Michele_Laino
  • Michele_Laino
no, since your function is increasing for x < -5/3 or x > 1, as you wrote before
vera_ewing
  • vera_ewing
Ah, I see. Thanks Michele!
Michele_Laino
  • Michele_Laino
:)

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