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Popular Functions >

inflection x/(9x^2-81)

Solution

inflection points

\frac{x}{9 x ^{2} - 81}

Solution

(0, 0)

Solution steps

f^{''} (x) = - \frac{2 x ( - x ^{2} - 27 )}{9 ( x ^{2} - 9 ) ^{3}}

Find intervals:

Concave Downward

: - \infty < x < - 3,

Concave Upward

: - 3 < x < 0,

Concave Downward

: 0 < x < 3,

Concave Upward

: 3 < x < \infty

Plug

x = 0

into

\frac{x}{9 x ^{2} - 81} : 0

(0, 0)

Graph

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inverse of f(x)=3(x-2)

Frequently Asked Questions (FAQ)

What is the inflection x/(9x^2-81) ?
The inflection x/(9x^2-81) is (0,0)