1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

Homework Help: Finding inflection points

  1. Nov 23, 2008 #1
    1. The problem statement, all variables and given/known data
    find the inflection points of the curve y=(^3 +6x^2 +15x +19)e^-x correct to five decimal places

    2. Relevant equations

    3. The attempt at a solution
    i know how to find the inflection points. you graph the derivative and find where the concavity shifts. but the e^-x really throws me off
  2. jcsd
  3. Nov 23, 2008 #2
    1)take 2 derivatives
    2)set result equal to zero
    3)solutions are inflection points
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook