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Math 211 Business Calculus Applications of Derivatives

Math 211 Business Calculus Applications of Derivatives

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– p. 3/34<br />

Example<br />

Lety = f(x) = x+ 1 x<br />

f ′ (x) = 1− 1 x 2 = 1−x −2<br />

f ′′ (x) = 2x −3 = 2 x 3<br />

Since lim f(x) = lim<br />

1<br />

x→0<br />

+<br />

x→0 +x+ x = ∞<br />

x = 0 (they-axis) is a vertical asymptote.<br />

Since lim<br />

x→∞<br />

f(x)−x

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