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Quadratic Equations and Solving Quadratic Equations

Quiz by Angkol

Grade 9
Mathematics
Philippines Curriculum: Grades K-10 (MELC)

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Measures 1 skill from
Grade 9
Mathematics
Philippines Curriculum: Grades K-10 (MELC)

M9AL-Ia-1

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10 questions
Show answers
  • Q1

    Which of the following is a quadratic equation?

    x^3-\ 2x\ +\ 1\ =\ 0

    x\ =\ 3

    2-x^2=0

    x\ -\ 2\ =\ 0

    30s
    M9AL-Ia-1
  • Q2

    What is the standard form of the equation 4x = 3x2 – 2?

    3x^2+4x\ -2\ =\ 0

    3x^2-4x\ -2=0

    3x^2\ +\ 4x\ +\ 2\ =\ 0

    3x^2-4x\ +\ 2\ =\ 0

    30s
  • Q3
    30s
  • Q4

    Which of the following is NOT a method of solving quadratic equations?

    Factoring

    Quadratic Surd

    Quadratic Formula

    Completing the square

    30s
  • Q5

    In any quadratic equations, how many possible roots are there?

    Infinite

    0

    2

    1

    30s
  • Q6

    How many possible real roots are therein the equation x2 = k, where k < 0?

    1

    2

    0

    Infinite

    30s
  • Q7

    Which of the following is the quadratic formula?

    x=\frac{-b\pm\sqrt{b^2-4ac}}{2a}

    x=\frac{-b\pm\sqrt{b^2}-2ac}{2a}

    x=\frac{b\pm\sqrt{b^2-4ac}}{2a}

    x=\frac{-b\pm\sqrt{b^2-4ac}}{2}

    30s
  • Q8

    What property states that “If the product of two numbers is zero, then either of the two is equal to zero or both numbers are equal to zero.”? 

    Zero product property

    Inverse Property

    Identity Property

    Reflexive Property

    30s
  • Q9

    is the most appropriate method to use in solving the equation x2 = k, where k>0?

    Completing the square

    Quadratic Surd

    Factoring

    Extracting the Square root

    30s
  • Q10

    In completing the square, what happens to the equation when both sides are added by square of one-half of the coefficient of x?

    It becomes perfect square trinomial

    It becomes, sum and difference of two squares

    It becomes perfect square

    It becomes perfect square binomial

    30s

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