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Popular Functions >

inflection 18x^4-108x^2

Solution

inflection points

18 x^{4} - 108 x^{2}

Solution

(- 1, - 90), (1, - 90)

Solution steps

f^{''} (x) = 216 x^{2} - 216

Find intervals:

Concave Upward

: - \infty < x < - 1,

Concave Downward

: - 1 < x < 1,

Concave Upward

: 1 < x < \infty

Plug

x = - 1

into

18 x^{4} - 108 x^{2} : - 90

(- 1, - 90)

Plug

x = 1

into

18 x^{4} - 108 x^{2} : - 90

(1, - 90)

(- 1, - 90), (1, - 90)

Graph

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Frequently Asked Questions (FAQ)

What is the inflection 18x^4-108x^2 ?
The inflection 18x^4-108x^2 is (-1,-90),(1,-90)