What is the inflection f(x)=15x^4-90x^2 ?

The inflection f(x)=15x^4-90x^2 is (-1,-75),(1,-75)

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inflection f(x)=15x^4-90x^2

inflection points

f (x) = 15 x^{4} - 90 x^{2}

(- 1, - 75), (1, - 75)

Solution steps

f^{''} (x) = 180 x^{2} - 180

Find intervals:

Concave Upward

: - \infty < x < - 1,

Concave Downward

: - 1 < x < 1,

Concave Upward

: 1 < x < \infty

Plug

x = - 1

into

15 x^{4} - 90 x^{2} : - 75

(- 1, - 75)

Plug

x = 1

into

15 x^{4} - 90 x^{2} : - 75

(1, - 75)

(- 1, - 75), (1, - 75)

lo g_{0.5} (x)

f (x) = - 4 x + 6

3 x + 1

f (x) = \frac{t - 1}{t ^{2} + 1}

What is the inflection f(x)=15x^4-90x^2 ?
The inflection f(x)=15x^4-90x^2 is (-1,-75),(1,-75)