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!

Range of graphs

  1. Jan 22, 2012 #1
    1. The problem statement, all variables and given/known data
    f(x) = ex2
    find the range of f(x)
    How do I do this - I don't know how to draw this graph?


    g(x) = x2 + 3ex2
    Again, how is this done without drawing the graph?


    2. Relevant equations



    3. The attempt at a solution
    so for the first graph, for example, I differentiated it
    dy/dx for f(x) = 2xex2
    Giving a min. point of 0
    BUT THE ANSWER IS f(x) ≥1
    Why does the min point method not work?
     
  2. jcsd
  3. Jan 22, 2012 #2
    oh of course, I found the x-value that gives the min. point
    so I sub this into the original equation
    never mind :)
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Range of graphs
  1. For the Graph (Replies: 7)

  2. Numerical Range (Replies: 1)

  3. Range Question (Replies: 9)

  4. Ranges of convergence (Replies: 16)

Loading...