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Bailey.Nae Group Title

HELP PLEASE A mirror with a parabolic cross section is used to collect sunlight on a pipe located at the focus of the mirror. The pipe is located 2 inches from the vertex of the mirror. Write an equation of the parabola that models the cross section of the mirror. Assume that the parabola opens upward.

  • 2 years ago
  • 2 years ago

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  1. FeoNeo33 Group Title
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    height of the parabola in inches: Take the formula to be y = ax^2 The focus of the parabola is 2 inches up, which means a/4 = 2 ==> a = 8... the equation is: y = 8x^2

    • 2 years ago
  2. Bailey.Nae Group Title
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    thank you , what if it was 6 inches?

    • 2 years ago
  3. Bailey.Nae Group Title
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    I would do the same thing right?

    • 2 years ago
  4. FeoNeo33 Group Title
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    Replace the 2 with a 6. Which means a/4 = 2 ==> a = 8. |||||| a/4 = 6 ==> a = 24. y = 24x^2

    • 2 years ago
  5. Bailey.Nae Group Title
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    why would it always be four?

    • 2 years ago
  6. FeoNeo33 Group Title
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    Yeah, I believe so. I think it's just the formula. I'll check very quickly for you tho.

    • 2 years ago
  7. Bailey.Nae Group Title
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    Noo noo , you don't have to i believe you lol I was just wondering , but thank you So much (:

    • 2 years ago
  8. FeoNeo33 Group Title
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    Whoops, y = ax^2 is the formula, I guess whatever the 'x' is, but at least you have the answer. Off to other post, later, welcome.

    • 2 years ago
  9. confluxepic Group Title
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    lol

    • 11 days ago
  10. confluxepic Group Title
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    @~

    • 11 days ago
  11. confluxepic Group Title
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    @nightwielder

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    @lol

    • 10 days ago
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