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!

Calculus Help

  1. Oct 20, 2004 #1
    Find the minimum distance from the point where x = 20 along the x axis to the curve given by:
    y= 3 * square root of (x-15)

    My prof. has not gone over this yet, so can someone help me?
  2. jcsd
  3. Oct 20, 2004 #2
    create a vector, measured from the origin that locates any point from the x = 2 mark to the line. Then find the magnitude of that vector (in terms of x). Differentiate that answer and set it equal to zero. Find your solution. Check to make sure it is a mininum and not a maximum.

    Then you have your x value. Plug that value into the equation for the maginute of the vector, that is the distance
    Last edited: Oct 20, 2004
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Similar Discussions: Calculus Help
  1. Help with calculus (Replies: 1)

  2. Calculus help (Replies: 2)

  3. Calculus help (Replies: 9)

  4. Calculus help ! (Replies: 14)

  5. Help on calculus! (Replies: 0)