calculus
posted by marissa
what are the inflection points of 5x^245/x^225

Damon
what is the numerator and what is the denominator?

Steve
assuming the usual sloppiness, we have
y=(5x^245)/(x^225)
y'= 160x/(x^225)^2
y" = 160(3x^2+25)/(x^225)^3
since y" is never zero, there are no inflection points, as can be confirmed here:
http://www.wolframalpha.com/input/?i=%285x^245%29%2F%28x^225%29
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