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Quadratic inequalities

Quiz by K KUMARAVELU

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7 questions
Show answers
  • Q1
    What is the general form of a quadratic inequality?
    a + b + c = 0
    ax^2 + bx + c < 0 or ax^2 + bx + c > 0
    ax + by = c
    ax + b > 0 or ax + b < 0
    ax^2 + bx + c = 0
    30s
  • Q2
    Which of the following is the correct solution to the quadratic inequality x^2 - 4x < 0?
    x < 2 or x > 6
    x < 0 or x > 4
    x < -4 or x > 0
    x < -2 or x > 2
    x < -6 or x > -2
    30s
  • Q3
    What is the discriminant of a quadratic equation?
    b^2 - 4ac
    b^2 + 4ac
    2b - 4ac
    b - 4ac
    b^2 - 4a
    30s
  • Q4
    What is the range of a quadratic function with a > 0?
    y ≥ a
    y ≤ 0
    y > 0
    y ≥ 0
    y < 0
    30s
  • Q5
    Which of the following is the correct solution to the quadratic inequality -2x^2 + 4x > 6?
    x < 1 or x > 3
    x < -1 or x > -3
    x < -3 or x > 1
    x < -1 or x > 3
    x < 3 or x > -1
    30s
  • Q6
    Which of the following is the correct solution to the quadratic inequality x^2 + 2x < 3?
    -3 < x < 1
    x < -1 or x > 3
    x < 1 or x > 3
    x < -3 or x > -1
    x < -3 or x > 1
    30s
  • Q7
    Which of the following is the correct solution to the quadratic inequality 2x^2 - 3x ≥ 2?
    x ≤ -1/2 or x ≥ 1
    x ≤ -2 or x ≥ 1/2
    x ≤ -2 or x ≥ 1
    x ≤ -1/2 or x ≥ 2
    x ≤ -1 or x ≥ 2
    30s

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