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January 31, 2015

January 31, 2015

Posted by **Carol** on Tuesday, February 28, 2012 at 10:53am.

for the function f(x) =1/x....f(x)is increasing on the interval(s) and f(x) is decreasing on the interval(s)???

- college algebra -
**Steve**, Tuesday, February 28, 2012 at 12:06pmRecall that f increases where f' > 0

f = 1/x

f' = -1/x^2

f' < 0 for all x ≠ 0

Think about the graph. It's a hyperbola, and is always decreasing, on both sides of the vertical asymptote at x=0.

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