Mathematics 9 Quarterly Assessment

The standard form of a quadratic equation is ___________.

• ax2 + bx + c = 0

• ax2 + bx - c = 0

• ax2 - bx + c = 0

• ax2 - bx - c = 0

What is a polynomial equation in one variable expressed in the form 𝑎𝑥2 + 𝑏𝑥 + 𝑐 = 0 where a, b, and c are real numbers such that 𝑎 ≠ 0?

• Discriminant

• Quadratic Equation

• Quadratic Function

• Polynomial Equation

Which of the following equations is a quadratic equation?

• 5 (x - 7) = 0

• 5 (3 -2x) = 5x

• (2x -5) + 2 = 0

• 2x2 - 3x - 6 = 0

Which of the following is a quadratic equation?

• 4𝑏 - 7 = 6

• 𝑦2 + 5𝑦 - 18 = 0

• 9𝑥2 + 3𝑥 - 1 < 5

• 7𝑥2 + 3𝑥 ≥ 9

What is the quadratic term of the equation 0 = 9𝑥2 − 9𝑥 − 28?

• 9𝑥2

• −9𝑥

• −28

• 9

What is the linear term of the quadratic equation 𝑥2 − 3𝑥 = 0?

• 𝑥2

• −3𝑥

• 0

• 1

In the quadratic equation 2x2 - 6 = 3x, what is the value of b?

• - 6

• - 3

• 2

• 3

What is the coefficient of 𝑏𝑥 in this equation 10𝑥2 −12𝑥+15=0?

• - 12

• - 10

• 10

• 12

The method that makes one side of a quadratic equation a perfect square trinomial is________.

• Completing the Square

• Factoring

• Extracting Square Root

• Quadratic Formula

Which of the following is the discriminant of the quadratic equation 𝑎𝑥2 + 𝑏𝑥 + 𝑐 = 0?

• 𝑐2 − 𝑏𝑐

• 𝑐2 − 4𝑏𝑎

• 𝑏2 + 4𝑎𝑐

• 𝑏2 − 4𝑎𝑐