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boog1 Group Title

apply the quadratic formula to find the roots of the given function, and then graph the function f(x)=y^2-9 please show work for credit

  • 3 years ago
  • 3 years ago

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  1. 101Ryan101 Group Title
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    OM goodness! :/

    • 3 years ago
  2. boog1 Group Title
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    lol

    • 3 years ago
  3. boog1 Group Title
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    thats what i said

    • 3 years ago
  4. 101Ryan101 Group Title
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    ha ah.. Hey, are you sure that's written correctly? :/

    • 3 years ago
  5. 101Ryan101 Group Title
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    usually it's f(x) = x^2 - 9

    • 3 years ago
  6. 101Ryan101 Group Title
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    not y^2 - 9

    • 3 years ago
  7. boog1 Group Title
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    f(x) = x^2 - 9

    • 3 years ago
  8. 101Ryan101 Group Title
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    ok, soooooo. huh... I guess f(x) = x?? lol

    • 3 years ago
  9. boog1 Group Title
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    i am having problems figuring out a b c for the formula

    • 3 years ago
  10. 101Ryan101 Group Title
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    weird. then it should be f(y) = y^2 -9 because we are dealing with a function of y

    • 3 years ago
  11. boog1 Group Title
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    it is changed to x

    • 3 years ago
  12. boog1 Group Title
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    f(x) = x^2 - 9

    • 3 years ago
  13. 101Ryan101 Group Title
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    AND there is no need to use the quadratic because you can factor this! x^2 - 9 = x^2 - 3^2 = (x+3) (x-3) so x is simply plus or minus 3! use the quadratic? for what! lol

    • 3 years ago
  14. boog1 Group Title
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    finding the roots

    • 3 years ago
  15. 101Ryan101 Group Title
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    well, the roots are -3 and 3 but anywyay with the quadratic you want to use (1)x^2 + 0x - 9 a = 1 b = 0 c = -9

    • 3 years ago
  16. boog1 Group Title
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    ok now I think I got it from there

    • 3 years ago
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