musicbird0405
musicbird0405 musicbird0405
  • 03-07-2018
  • Mathematics
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Help!! 15pts!!! Urgent!!

Help 15pts Urgent class=

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DeanR
DeanR DeanR
  • 03-07-2018
We're interested in where the function f(x) intersects the horizontal line y=k.

The only place where a horizontal line y=k can cross f(x) three times is when k is between the local minimum and the local maximum, so from about -4 to -2.5. So we get choice (D).


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