C2 question

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  1. babit's Avatar
    1 17-05-2012  18:59
    • Full Member
    • Posts: 89
    C2 question
    The circle, centre (p,q) radius 25, meets the x-axis at (-7,0) and (7,0), where q>0.
    Find the value of p and q

    Can anyone help?
    Last edited by babit; 17-05-2012 at 19:13.
  2. nohomo's Avatar
    2 17-05-2012  19:14
    • Benevolent Member
    • Posts: 662
    Re: C2 question
    Substitute (x,y)=(-7,0) and (x,y)=(7,0) into

    (x-p)^2+(y-q)^2 = 25^2
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