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Sheridan16 Group Title

What's the vertex of y=x^2+6x+8?(

  • one year ago
  • one year ago

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  1. BluFoot Group Title
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    x-coordinate of vertex when y=ax^2+bx+c = -b/2a

    • one year ago
  2. abb0t Group Title
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    Start by completing the square first.

    • one year ago
  3. BluFoot Group Title
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    Once you have the x-coordinate you can easily solve for y-coordinate by plugging in

    • one year ago
  4. Helly Group Title
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    the answer is {-3,-1} have a nice day=D

    • one year ago
  5. abb0t Group Title
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    HINT: Remember that the vertex form is: \[y = a(x-h)^2+k\]

    • one year ago
  6. Helly Group Title
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    aw thanks=D Im really good with problems that don't involve words lol

    • one year ago
  7. abb0t Group Title
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    giving away the answer doesn't help the person learn, @Helly :P

    • one year ago
  8. Helly Group Title
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    SORRY=(

    • one year ago
  9. Sheridan16 Group Title
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    How do you figure out if its the maximum or minimum?

    • one year ago
  10. BluFoot Group Title
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    Is the curve going up or down? Look at the sign of "a"

    • one year ago
  11. abb0t Group Title
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    You could take a few derivatives.

    • one year ago
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