anonymous
  • anonymous
Help!
Mathematics
  • Stacey Warren - Expert brainly.com
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jamiebookeater
  • jamiebookeater
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anonymous
  • anonymous
Ok when the function is increasing that means the slope of the tangent at a particular point on the function is increasing right?
anonymous
  • anonymous
Yes
anonymous
  • anonymous
just find the interval where f'(x) is positive. f will increase on that interval. and find the interval where f'(x) is negative. f will decrease on that interval

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zzr0ck3r
  • zzr0ck3r
It is a quadratic, so we can use the vertex and not do all this pesky calculus stuff.
anonymous
  • anonymous
Is it increasing at (-inifinity, -1) U (-4, infinity) and decreasing at (-1,-4)
anonymous
  • anonymous
Correct
anonymous
  • anonymous
Actually waittt no you flipped the signs all should he positive
anonymous
  • anonymous
So you're saying it should be decreasing at (-infinity,1) U (44,infinity) and increasing at (1,4)
anonymous
  • anonymous
Noo i mean its increasing from ]inf,1[ uni ]5,inf[ and decr (1,4)
anonymous
  • anonymous
-inf*
anonymous
  • anonymous
Do you mean -inf,1 and 4, inf because thats what the answer choice says
anonymous
  • anonymous
Yess
anonymous
  • anonymous
Thats when its increasing oh yeah sorry i wrote 5 by mistake
anonymous
  • anonymous
Okay thank you so much!!!!
anonymous
  • anonymous
Anytime

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