Q1:

If a quadratic equation has no real roots the value of the discriminant could be: 
A. 3 B. 0 C. 1 D. 3 
Answer 1: 

Q2:

If the value of the discriminant of a quadratic equation is 1 then the equation has:

A. 0 roots B. 1 root C. 2 roots D. 3 roots 
Answer 2: 

Q3:

Find p so that x^{2}  4x + p = 0 has one root.

A. 2 B. 2 C. 4 D. 4 
Answer 3: 

Q4:

What is the value of the discriminant for the equation px^{2} + qx + r = 0? 
A. q^{2}  4pr B. q^{2} + 4pr C. r^{2}  4pr D. r^{2}  4qr 
Answer 4: 

Q5:

Which of these equations has two real roots? 
A. x^{2}  4x + 4 = 0 B. x^{2}  x + 5 = 0 C. x^{2}  10x + 100 = 0 D. x^{2}  4x + 3 = 0 
Answer 5: 

Q6:

In a quadratic equation, the value of b^{2}  4ac is called: 
A. The denominator B. The diameter C. The discriminant D. The divisor 
Answer 6: 

Q7:

Which is true for the equation x^{2} 5x + 12 = 0? 
A. There are two real roots B. There is one repeated root C. There are no real roots D. There are two rational roots. 
Answer 7: 

Q8:

What is the value of the discriminant for the quadratic equation 4x^{2}  25 = 0? 
A. 100 B. 100 C. 400 D. 400 
Answer 8: 

Q9:

If the discriminant of a quadratic equation is 1, how many real roots will the equation have? 
A. 1 B. 0 C. 1 D. 2 
Answer 9: 

Q10:

Find p so that px^{2} + 8x + 16 = 0 has one real root 
A. p = 1 B. p = 2 C. p = 4 D. p = 8 
Answer 10: 
