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Some help please graph problem

  1. Jan 12, 2004 #1
    I can't get the correct answer to this problem.

    Find all points having a y-coordinate of -3 whos distance from the point (1,2) is 13.

    Thank you!
     
  2. jcsd
  3. Jan 12, 2004 #2

    mathman

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    Since the y difference is 5 (2-(-3)), the x difference must be 12 (52+122=132). The x coordinate must therefore be 13 or -11. (You've got 2 points - I am assuming we're working in a plane).

    This is an elementary geometry problem. Why is it this forum?
     
  4. Jan 12, 2004 #3
    hi, bed time.

    bye.
     
  5. Jan 12, 2004 #4

    Hurkyl

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