Posted by tim2222 on Friday, March 1, 2013 at 8:16pm.
y' = 3x^2 - 2x - 8
y '' = 6x - 2
at the point of inflection y'' = 0
6x-2 = 0
x = 2/6 = 1/3
if x=1/3
y = 1/27 - 1/9 - 8/3 + 12
= 250/27
the point of inflection is (1/3 , 250/27)
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