**Q3: **

Determine the sign of the function in .

- AThe function is positive for all .
- BThe function is negative for all .
- CThe function is positive when , negative when , and equals zero when .
- DThe function is positive when , negative when , and equals zero when .
- EThe function is positive when , and it equals zero when .

**Q4: **

Determine the sign of the function in .

- AThe function is positive when and is zero when .
- BThe function is negative when and is zero when .
- CThe function is negative when and is zero when .
- DThe function is positive when and is zero when .
- EThe function is positive when and is zero when .

**Q5: **

Determine the sign of the function in .

- AThe function is positive when and is zero when .
- BThe function is negative when and is zero when .
- CThe function is negative when and is zero when .
- DThe function is positive when and is zero when .
- EThe function is positive when and is zero when .

**Q6: **

Determine the sign of the function .

- A The function is positive when , the function is negative when , and the function equals zero when .
- B The function is positive when , the function is negative when , and the function equals zero when .
- C The function is positive when , the function is negative when , and the function equals zero when .
- D The function is positive when , the function is negative when , and the function equals zero when .
- Epositive

**Q7: **

Determine the sign of the function .

- AThe function is positive when , negative when , and equals zero when .
- BThe function is positive when , negative when , and equals zero when .
- CThe function is positive when , and equals zero when .
- DThe function is positive for all .

**Q8: **

Determine the sign of the function .

- AThe function is positive when , negative when , and equals zero when .
- BThe function is positive when , negative when , and equals zero when .
- CThe function is positive when , and equals zero when .
- DThe function is negative for all .

**Q9: **

In which of the following intervals is negative?

- A
- B
- C
- D
- E

**Q10: **

In which of the following intervals is positive?

- A
- B
- C
- D
- E

**Q11: **

Which of the following statements about the sign of the function is correct?

- A is negative for .
- B is positive for .
- C is negative for .
- D is positive for .
- E is positive for .

**Q12: **

What is the condition on so that is negative?

- A
- B
- C
- D

**Q13: **

What is the condition on so that is positive?

- A
- B
- C
- D

**Q14: **

Determine where the function is positive.

- A
- B
- C
- D
- E

**Q15: **

Determine the sign of the function .

- A The function is positive when , the function is negative when , and the function equals zero when .
- B The function is positive when , the function is negative when , and the function equals zero when .
- C The function is positive when , the function is negative when , and the function equals zero when .
- D The function is positive when , the function is negative when , and the function equals zero when .

**Q16: **

Determine the sign of the function .

- A The function is positive when , the function is negative when , and the function equals zero when .
- B The function is positive when , the function is negative when , and the function equals zero when .
- C The function is positive when , the function is negative when , and the function equals zero when .
- D The function is positive when , the function is negative when , and the function equals zero when .

**Q17: **

Determine the sign of the function .

- AThe function is positive when , negative when , and zero when .
- BThe function is negative when , positive when , and zero when .
- CThe function is negative when , positive when , and zero when .
- DThe function is positive when , negative when , and zero when .
- EThe function is positive when , and zero when .

**Q18: **

What are the values of for which the functions and are both positive?

- A
- B
- C
- D
- E

**Q19: **

The function is positive in which interval?

- A
- B
- C
- D
- E

**Q20: **

Determine the interval where the sign of each of the two functions and are negative together on .

- A
- B
- C
- D
- E

**Q21: **

Determine the sign of the function .

- AThe function is positive for all , and equals zero when .
- BThe function is negative at , positive at , and equals zero when .
- CThe function is positive for all , and equals zero when .
- DThe function is positive at , negative at , and equals zero when .

**Q22: **

Determine the sign of the function .

**Q23: **

Determine the interval in which the function is NOT negative.

- A
- B
- C
- D
- E

**Q24: **

Determine the sign of the function .

- AThe function is positive for all , and the function equals zero when .
- BThe function is positive for all .
- CThe function is negative for all , and the function equals zero when .
- DThe function is negative for all .

**Q25: **

Determine the sign of the function .

- AThe function is positive when , and the function equals zero when .
- BThe function is positive for all .
- CThe function is positive when , and the function equals zero when .
- DThe function is positive when , and the function equals zero when .