Tuesday

July 22, 2014

July 22, 2014

Posted by **sam** on Thursday, May 29, 2008 at 11:02pm.

- math -
**drwls**, Friday, May 30, 2008 at 12:40amLook for points where the second derivative is zero. The first derivative (slope) must also change sign there.

You will have to solve this cubic equation to get the inflection point.

240 x^3 + 540 x^2 - 480 x = 0

You can factor this down to

x (12x^2 + 27 x -20) = 0

x = 0 is one of the inflection points; there appear to be two others but the quadratic term does not factor easily.

**Related Questions**

math - f(x)=12x^5+45x^4–80x^3+2 the question asks to find the inflection points ...

MATH URGENT - f(x)=12x^5+45x^4–80x^3+2 the question asks to find the inflection ...

Calculus - Find the inflection points for f(x) = 12x^5 + 45x^4 - 360x^3 + 7

calculus - Find all relative extrema and points of inflection of the function: f...

Calculus - The number of people who donated to a certain organization between ...

calculus - Use a graph of f(x) = 3 e^{-8 x^2} to estimate the x-values of any ...

Polynomial Fucntion Problem - Could you help me with the following problem, I ...

calc - one more question!! what values of c deos the polynomial f(x) = x^4 + cx^...

Math URGENT REALLY FAST HELP - find the inflection points of the function: f9x)=...

Calculus - Find equations of the tangent lines at all inflection points of the ...