Math Quiz Bee for Grade 8

1.  If one of the factors of a perfect square trinomial is 3y + 4z, what is the other factor?

• A. 3 + 4z        

• B. 3y + 4z

• C. 3y – 4z

• D. y – 4z

2. Find the length of the side of a square if the area is twice its perimeter.

                                                                                                                 

• A. 4

• B. 8 

• C. 10

• D. 12

3. What is “Four less than twice x” in symbols?

• A. 4 – 2x                              

• B. 2x – 4

• C. x – 2

• D. 2 – x

4. Which of the following is a linear inequality in two variables?

• A. 𝑥 + 𝑦 = 2

• B. 𝑥 + 5 > 8

• C. 3𝑚 + 5𝑛 < 10 

• D. 3𝑞 – 2𝑞 ≠ 6

5. Which of the following inequalities illustrates “the sum of 𝑥 and 𝑦 is at most 15”?

• A. 𝑥 + 𝑦 = 15

• B. 𝑥 + 𝑦 > 15

• C. 𝑥 + 𝑦 ≤ 15

• D. 𝑥 + 𝑦 ≥ 15

6. Which of the following inequalities has (5, 1) as a solution?

• A. 3𝑥 + 𝑦 ≤ 3

• B. 3𝑥 – 𝑦 ≤ 3

• C. 3𝑥 – 𝑦 < 15

• D. 3𝑥 + 𝑦 < 15

7. Which of the following ordered pairs satisfy the system of inequalities { 𝑥 − 4𝑦 ≥ 6 3𝑥 + 2𝑦 > 5 ?

• A. (0, -3)

• B. (1, 5)

• C. (2, -2)

• D. (10, -2)

8. Which of the following is included in the solution set of the system of inequalities in two variables– 2𝑥 + 5𝑦 ≥ 3 and 3𝑥 + 2𝑦 > 1?

• A. (1, 2)

• B. (2,1)

• C. (4, 2)

• D. (3,0)

9. Which of the following equations is in the slope-intercept form?

                                         

• A. y = 5x + 3

• B. 2x – y = 7 

• C. 4x + y – 2 = 0

• D. 2y = 5

10. Which of the following function follows the form 𝑓(𝑥) = 𝑚𝑥 + b?

• A. exponential function

• B. linear function

• C. polynomial function

• D. quadratic Function