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Author Question: For the function, find the interval(s) for which f'(x) is positive.f(x) = x2+ 5x + 8 (Read 18 times)

go.lag

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Question 1

For the function, find the interval(s) for which f'(x) is positive.

f(x) = x2 - 8x + 9
◦ (4, ∞)
◦ (8, ∞)
◦ (9, ∞)
◦ (4.5, ∞)

Question 2

For the function, find the interval(s) for which f'(x) is positive.

f(x) = x2 + 5x + 8
◦ (4, ∞)
◦ (2.5, ∞)
◦ (8, ∞)
◦ (-2.5, ∞)


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Marked as best answer by go.lag on Jun 16, 2021

jaaaaaaa

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go.lag

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Reply 2 on: Jun 16, 2021
Wow, this really help


Jsherida

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Reply 3 on: Yesterday
YES! Correct, THANKS for helping me on my review

 

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