Mathematics 9 First Quarter Test

In the quadratic equation 2𝑥2 + 7𝑥 − 2 = 0, which is the quadratic term?

• A. 2𝑥2

• B. 𝑥2

• C. 7𝑥

In the quadratic equation, (𝑥 + 7)2 = 289, what is the value of 𝑥?

• A. −24

• B. −10

• C. −10 or −24

• D. 10 or −24

What are the roots of the quadratic equation ℎ2 = 49?

• A. ±7

• B. ±14

• C. ±27

• D. 10 or −24

What is 𝑥 in the quadratic equation 𝑥2 + 3𝑥 − 28 = 0?

• A. −4 and −7

• B. −7 and 4

• C. -4 and 7

• D. ±49

What are the solutions of the quadratic equation 𝑥2 + 10𝑥 + 21 = 0?

• A. −11 and −10

• B. −7 and −3

• C. 3 and 7

• D. −4 and 7

What is the value of 𝑥 in the quadratic equation 2𝑥2 + 8𝑥 − 10 = 0?

• A. 4 or 1

• B. 3 or −5

• C. 1 or −5

• D. 10 and 11

Which could be the value of the discriminant of a perfect square trinomial?

• A. −4

• B. 0

• C. 7

• D. 16

What will be the nature of the roots of the quadratic equation if the value of its discriminant is 121?

• A. not real

• B. rational and equal

• C. rational and not equal

• D. irrational and not equal

What is the nature of the roots of the quadratic equation 𝑥2 + 4𝑥 + 4 = 0?

• A. not real

• B. rational and equal

• C. rational and not equal

• D. irrational and not equal

If the roots of the quadratic equation 𝑥2 + 6𝑥 + 𝑘 = 0 are equal, then what will be the value of 𝒌?

• A. 1

• B. 3

• C. 6

• D. 9