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Popular >

extreme f(x)=-4x^3-11

Solution

extreme points

f (x) = - 4 x^{3} - 11

Solution

Saddle (0, - 11)

Solution steps

f^{'} (x) = - 12 x^{2}

Find intervals:

Decreasing

: - \infty < x < 0,

Decreasing

: 0 < x < \infty

Plug

x = 0

into

- 4 x^{3} - 11 : - 11

Saddle (0, - 11)

Popular Examples

inflection f(x)=x^4-6x^2+4 inflection points

f (x) = x^{4} - 6 x^{2} + 4

perpendicular y=9x-3,(-3,-6)perpendicular

y = 9 x - 3, (- 3, - 6)

simplify (3.3)(1.19)simplify

(3.3) (1.19)

f (x) = sin^{3} (x)

domain of x/(3x-1)domain

\frac{x}{3 x - 1}

Frequently Asked Questions (FAQ)

What is the extreme f(x)=-4x^3-11 ?
The extreme f(x)=-4x^3-11 is Saddle(0,-11)