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SKforlife

  • 4 years ago

PLEASE HELP WITH THESE TWO QUESTIONS 1...What are the values of a, b, and c in the function? List them in order with commas, such as 1,-2,3. y = -2x2 + 5x - 4 2...What is the vertex for the function? (You will want to find the axis of symmetry first.) Write as an ordered pair, leaving no spaces, such as (1,-4). y = -3x2 + 6x

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  1. nickymarden
    • 4 years ago
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    1. -2, 5, -4

  2. SKforlife
    • 4 years ago
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    Do you know the second one?

  3. nickymarden
    • 4 years ago
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    \[Xv= (-b)/2a \] \[Yv=-\Delta/4a\]

  4. MHAMMED
    • 4 years ago
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    x= -b/(2a) y(-b/2a)=

  5. nickymarden
    • 4 years ago
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    \[\Delta=b^2-4ac\]

  6. MHAMMED
    • 4 years ago
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    Did you get it?

  7. SKforlife
    • 4 years ago
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    no i dont know the anwser ? lol

  8. nickymarden
    • 4 years ago
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    just put the numbers into the formulas and you'll get the answers..

  9. MHAMMED
    • 4 years ago
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    the answer is ( 1,3)

  10. MHAMMED
    • 4 years ago
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    \[a=-3 , b=6, x=(-6)/2(-3)=1, y(1)= -3(1)^2+6(1)=3\]

  11. MHAMMED
    • 4 years ago
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    So the vertex is (1,3)

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