1. Not finding help here? Sign up for a free 30min 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!

Immediate HELP! For any point A(x,y) of a locus

  1. Mar 24, 2005 #1
    For any point of a locus, the sum of the squares of the coordinates is 9 determine the equation of the locus. And draw a diagram.

    I can only think of the obvious x^2+y^2=9 ?

    Can someone plz help me quick!
  2. jcsd
  3. Mar 24, 2005 #2
    Thats correct.
  4. Mar 24, 2005 #3
    are you sure? What should the diagram look like? I have a circle with a line called r for the radius and a point on the circle labelled P(x,y) and the center (0,0) thats it? What else?
  5. Mar 24, 2005 #4
    Circle of radius 3 centered at the origin, of course.
  6. Mar 24, 2005 #5
    Can you think of any point whos coordinates squared dont lie on that line?

    We can get into a whole bunch of trig to prove it if you'd like :)
  7. Mar 24, 2005 #6
    ok I hope this answer is correct Im going to submit it. OK OK I BELIEVE U THANKS SOO MUCH last assignment question seemed cheezy just wanted to make sure b4 i handed it in thanks soo much
    Last edited: Mar 24, 2005
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Have something to add?

Similar Discussions: Immediate HELP! For any point A(x,y) of a locus
  1. Locus help (Replies: 13)