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anonymous

  • 5 years ago

Which of the quadratics has a graph with only one x-intercept? A) y = 2x2 + 4 B) y = x2 - 8x + 16 C) y = 2x2 - 8x + 20 D) y = -2(x -1)2 + 2

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  1. anonymous
    • 5 years ago
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    Quadratic equations are of the form \[ax^2 + bx + c\] Use the discriminant: \[b^2-4ac\] If the discriminant is positive, the specific quadratic has two intercepts. If the discriminant is negative, the specific quadratic is imaginary (no intercepts). If the discriminant is equal to 0, there is one intercept.

  2. anonymous
    • 5 years ago
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    dont do his homework for him

  3. anonymous
    • 5 years ago
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    browsing, he makes no effort. he just wants answer

  4. anonymous
    • 5 years ago
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    he wants free lunch

  5. anonymous
    • 5 years ago
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    i dont fluttering get it. and im not a guy

  6. anonymous
    • 5 years ago
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    jerk

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