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Parabole e disequazioni di secondo grado

Quiz by Ester Dalvit

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4 questions
Show answers
  • Q1
    Quale è il discriminante di dell'equazione di secondo grado ax² + bx + c = 0?
    Δ = b² + 4ac
    Δ = b² - 4ac
    Δ = b² - ac
    Δ = c² + 4ab
    30s
  • Q2
    Quale delle seguenti equazioni rappresenta una parabola con concavità verso il basso?
    y = - 2x^2 - 3x + 1
    y = -3x + 2x²
    y = - 3x + 1
    y = 2x² + 3x - 1
    30s
  • Q3
    Quale delle seguenti equazioni rappresenta una parabola con vertice nell'origine?
    y = x^2 + 1
    y = (x + 1)^2 + 2
    y = -7x^2
    y = 3(x - 1)^2 + 1
    y = x^2 + 2x
    30s
  • Q4
    30s

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