Monday
March 2, 2015

Homework Help: Math-Calculus (check please)

Posted by songyi on Saturday, November 1, 2008 at 8:32pm.

FOr the function f(x)=x^2e^x

Find the critical points, increasing decreasing, first and second derivative and concavity

I am having trouble finding the concavity >_<

First derivative: xe^x(x+2)
Second : e^x(x^2+4x+2)

Critical points from first derivate:
x=0,-2

Increasing: (-infinity,0) (-2, infinity)
Decreasing: (0,-2)

I can't figure out how to do the concavity part of it.

Answer this Question

First Name:
School Subject:
Answer:

Related Questions

Calculus - For y=(1/4)x^4-(2/3)x^3+(1/2)x^2-3, find the exact intervals on which...
Calculus - Given the function: f(x) = x^2 + 1 / x^2 - 9 a)find y and x ...
Calculus - Given the function: f(x) = x^2 + 1 / x^2 - 9 a)find y and x ...
CALC 1 - Suppose that h is a function with h'(x) = xe^x. Find all intervals ...
Please check my Calculus - 1. Given f(x)=-6/x, choose the correct statement A. ...
Calculus-Function - sketch the graph of a function in neighborhood x=2 that ...
Math - Simple rational functions (check) - Consider the function f(x) = x/(x-1) ...
Concavity-Calculus - Determine the concavity for f(x)= 4/x^2-1 I took the second...
increasing decreasing and more - How to analytically find the intervals on which...
Math - Simple rational Function (check) - Consider the function f(x) = x/(x-1) ...

Members