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anonymous

  • one year ago

The vertex of the parabola below is at the point (1, -3). Which of the equations below could be the one for this parabola?

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  1. anonymous
    • one year ago
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    http://media.apexlearning.com/Images/201011/29/c2208537-7674-451b-a529-48db9177980a.gif

  2. anonymous
    • one year ago
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    A. y = (x + 3)2 + 1 B. x = -3(y - 1)2 C. y = (x - 1)2 - 3 D. y = (x + 1)2 - 3

  3. math&ing001
    • one year ago
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    Plug x and y with their values 1 and -3 respectively in the equations, and see which one checks.

  4. anonymous
    • one year ago
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    @Loser66

  5. anonymous
    • one year ago
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    @math&ing001 is correct just plug in.

  6. anonymous
    • one year ago
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    A?

  7. Loser66
    • one year ago
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    @oscar55773 why don't you "plug in" like what the helper suggested? why don't you stop guessing?

  8. anonymous
    • one year ago
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    A is wrong by a long shot

  9. Loser66
    • one year ago
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    Or you don't know what the "plug in" is?

  10. anonymous
    • one year ago
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    yup

  11. anonymous
    • one year ago
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    (X,Y) = (1,-3)

  12. anonymous
    • one year ago
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    d

  13. anonymous
    • one year ago
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    y=(x,h)+k

  14. math&ing001
    • one year ago
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    Here's an example: y =(x + 1)^2 - 3 -3 =(1 + 1)^2 - 3 -3 =2^2 - 3 -3 = 1 So D is not an option. Do the same for the others.

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