MATH 9 INTERVENTION AVOGADRO

Quiz by LONEVIE SUNIO

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### Measures 1 skill fromGrade 9MathematicsPhilippines Curriculum: Grades K-10 (MELC)

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- Q1
What do you call a polynomial equation of degree two that can be written in the form ax

^{2}+ bx + c = 0, where a, b, and care real numbers and a ≠ 0?Quadratic Equation

Linear Inequality

Linear Equation

Quadratic Inequality

120sM9AL-Ia-1 - Q2
Which of the following is a quadratic equation?

4x (3x

^{2}– 9)3t -5 =2

2x

^{2}+ 4x – 2 = 0y + 2

120sM9AL-Ia-1 - Q3
In the quadratic equation 3x

^{2}+ 7x – 4 =0, which is the quadratic term?– 4

0

7x

3x

^{2}120s - Q4
The roots of a quadratic equation are - 5 and 3.Which of the following quadratic equations has these roots?

x

^{2}+ 2x – 15 = 0x

^{2}– 8x + 15 = 0x

^{2}+ 8x + 15 = 0x

^{2}– 2x – 15 = 0120s - Q5
How many real roots does quadratic equation x

^{2}+ 5x + 7 = 0 have?0

3

2

1

120s - Q6
What is the sum of the roots of the quadraticequation x

^{2}+ 6x – 27 = 0?– 3

– 7

– 6

14

120s - Q7
What are the roots of the quadratic equation x

^{2}+ x – 56 = 0?-8 and 7

8 and -7

3 and - 2

2 and -1

120s - Q8
One of the roots of 2x

^{2}– 13x + 20 =0 is 4. What is the other root?-5/2

5/2

2/5

-2/5

120s - Q9
What is the standard form of the quadratic equation(2x + 7) (x -1) = 0?

2x

^{2}– 5x – 7 = 02x

^{2}+ 5x + 7= 0-2x

^{2}+ 5x – 7 = 02x

^{2}+ 5x – 7 = 0120s - Q10
Which of the following quadratic equations can besolved easily by extracting square roots?

v

^{2}– 3v – 10 = 06x

^{2}– 9x + 12 = 04m

^{2}– 64 = 05n

^{2}+ 7n – 51120s