What is the critical f(x)=2.1+4.4x-0.7x^2 ?

The critical f(x)=2.1+4.4x-0.7x^2 is x= 22/7

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critical f(x)=2.1+4.4x-0.7x^2

critical points

f (x) = 2.1 + 4.4 x - 0.7 x^{2}

x = \frac{22}{7}

Solution steps

2.1 + 4.4 x - 0.7 x^{2}

Find where

f^{'} (x)

is equal to zero or undefined

x = \frac{22}{7}

Identify critical points not in

f (x)

domain

Domain of

2.1 + 4.4 x - 0.7 x^{2} : - \infty < x < \infty

All critical points are in domain

x = \frac{22}{7}

f (x) = - x^{3} + 3 x^{2} - 1

f (x) = \frac{2}{3 x} - 4

sin (\frac{1}{x})

(- 4, - 2), (2, 2)

What is the critical f(x)=2.1+4.4x-0.7x^2 ?
The critical f(x)=2.1+4.4x-0.7x^2 is x= 22/7