Quadratic Inequalities Quiz

Which of the following is in the form of quadratic inequality?

• A. 𝑎𝑥² + 𝑏𝑥 + 𝑐 > 0                      

• B. 𝑏𝑥 + 𝑐 < 0                                

• C. 𝑎𝑥² + 𝑏𝑥 + 𝑐 = 0

• D. 𝑏𝑥 + 𝑐 = 0

Which of the following mathematical statements is a quadratic inequality?

• A. 5𝑡 ² − 3𝑟 − 20 = 0

• B. 4𝑥 ² + 9𝑥 − 2 ≥ 0

• C. 9ℎ + 18 < 0

• D. 𝑚² + 9𝑚 + 16 = 0

3. Which of the following is true about quadratic inequality?

• A. It contains a 2nd degree polynomial

• B. It contains a 3rd degree polynomial.

• C. Two sides of the inequality separated by “=” symbol.

• D. None of the above

4. Which of the following shows a relation of “greater than”?

• A. (𝑥 + 4) ² < 𝑥                           

• B. (𝑥 + 4) ² ≥ 𝑥

• C. 𝑥 ² + 4 > 𝑥

•  D. 𝑥 ² + 4 < 𝑥

5. Which of the following is NOT a quadratic inequality?

• A. (2𝑤⁴ − 5) < 2𝑤⁴ + 3𝑥 ²  

• B. 4𝑣 ² − 4𝑣 < 0

• C. 4𝑥 ² − 9 ≥ 3 + 4𝑥 ²

• D. 𝑛² + 1 < 0