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mathtard

  • 4 years ago

Find the vertex, line of symmetry, and the minimum or maximum value. f(x)=8-x^2

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  1. candawg
    • 4 years ago
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    yeah never heard of that

  2. dumbcow
    • 4 years ago
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    rewrite in standard form f(x) = -x^2 + 8 line of symmetry: (x-coord of vertex) x = -b/2a If a is negative, parabola opens down --> maximum if a is positive,parabola opens up --> minimum

  3. mathtard
    • 4 years ago
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    Ok. what do you mean in standard form? Like (2,8)?

  4. dumbcow
    • 4 years ago
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    standard form of a quadratic equation \[ax^{2} +bx+c \]

  5. mathtard
    • 4 years ago
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    hmmm.

  6. mathtard
    • 4 years ago
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    I guess I don't know how to do that.

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