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anonymous
 5 years ago
maximum y value
f(x)=x^2+2x+2
f is increasing x greater than or less than?
f is decreasing x less than or greater to ?
anonymous
 5 years ago
maximum y value f(x)=x^2+2x+2 f is increasing x greater than or less than? f is decreasing x less than or greater to ?

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anonymous
 5 years ago
Best ResponseYou've already chosen the best response.0Take the first derivative to find the critical points, where it changes from increasing to decreasing. f'(x)=2x+2 2x+2=0 > x=1 Therefore there is a critical point at x=1 (plug into original to find y value. Critical point is at (1,3). Since x^2 is an upside down parabola, the maximum is at that point (1,3). As well as that, is must be increasing before that point (inf,1). and decreasing afterwards (1,inf) Hopefully this helps. (Might have made a mistake in the algebra, so check it yourself. I am running on 1 hour of sleep :P.)
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