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anonymous

  • 5 years ago

please help me find the quadratic equation for these points (-9,20) (-9,17) (-8,16) (-7,17) (-7,20)

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  1. Owlfred
    • 5 years ago
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    Hoot! You just asked your first question! Hang tight while I find people to answer it for you. You can thank people who give you good answers by clicking the 'Good Answer' button on the right!

  2. amistre64
    • 5 years ago
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    well, its gonna be a y^2 maybe

  3. anonymous
    • 5 years ago
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    sorry to interrupt but..... amister64 can you help me please after you finish?

  4. amistre64
    • 5 years ago
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  5. amistre64
    • 5 years ago
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    i can try....

  6. anonymous
    • 5 years ago
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    ok thanks

  7. amistre64
    • 5 years ago
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    i made this for this kinda problem; just gotta plug in the numbers in reverse tho for this one

  8. anonymous
    • 5 years ago
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    what level of math are you in?

  9. amistre64
    • 5 years ago
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    0.25y^2 -9.25y + 76 maybe

  10. anonymous
    • 5 years ago
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    I think you need a system of linear equations to solve this problem

  11. amistre64
    • 5 years ago
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    yeah, you do :)

  12. amistre64
    • 5 years ago
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    3 of them

  13. anonymous
    • 5 years ago
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    I think that you can find the reduced row echelon form of the system or use craemers rule

  14. anonymous
    • 5 years ago
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    sorry if you do not understand reduced row echelon form... it is fancy matrix math I learned in a college linear algebra class

  15. anonymous
    • 5 years ago
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    I think you just need to choose 3 sample points. If you use all 5 you will have an overdetermined system.

  16. anonymous
    • 5 years ago
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    we have to figure it out by refering to the parent function which is y=x^2

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