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angela210793

  • 5 years ago

find the coordinates of the circle's center ......

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  1. angela210793
    • 5 years ago
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  2. angela210793
    • 5 years ago
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    B(?;?)

  3. anonymous
    • 5 years ago
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    Your question may be rephrased what is f(x) or what is y when x is 1. As a check what is f(x), or what is y when x is -1?

  4. angela210793
    • 5 years ago
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    is x=+-1? O.o

  5. anonymous
    • 5 years ago
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    0,1/4

  6. angela210793
    • 5 years ago
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    O.o Will u explain me how did u get that? Please???

  7. anonymous
    • 5 years ago
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    same technique get y in terms of x from the 2nd equation,replca y in the first equation thenb solve it

  8. anonymous
    • 5 years ago
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    btw there is something weird going on my posts are showing up in 3 questions at once

  9. angela210793
    • 5 years ago
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    idk wht 2 say abt tht....

  10. angela210793
    • 5 years ago
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    w8 a sec...wht 2nd equation? O.o

  11. anonymous
    • 5 years ago
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    the equation of the circle must be x^2 + (y - b) = 1 since the circle must lie on the y axes due to symmtry and we don't know the y co-ordinate of the centre(we'll call it b)

  12. angela210793
    • 5 years ago
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    shouldn't (y-b) b squared?

  13. anonymous
    • 5 years ago
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    now y = x^2 the resulting quadratic after subsitution can only have 1 root therefor D = 0

  14. anonymous
    • 5 years ago
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    sorry typing error

  15. angela210793
    • 5 years ago
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    Definitely I'm very stupid at maths....:(:(:( :'(

  16. anonymous
    • 5 years ago
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    don't worry I bet you're great at something else

  17. angela210793
    • 5 years ago
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    ^_^ Thanks ^_^ I got an idea...will u lend me ur brain only 4 1 day (15/06) i have a math exam...I'll give it back..SWEAR!!!!

  18. anonymous
    • 5 years ago
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    ha ha ha ... wish I could do that ... but alas

  19. angela210793
    • 5 years ago
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    Yea..poor me....:(:( :'( :'( ...i guess i have to squeeze out my brain for a loong time till i learn these very well :S

  20. anonymous
    • 5 years ago
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    When y=1/4, x=+/- 1/2. Doesn't hold a 1 unit radius?!

  21. anonymous
    • 5 years ago
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    gtg guys best of luck angela

  22. angela210793
    • 5 years ago
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    thnx ^_^

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