1) What is the nature of the roots of quadratic equation if the value of the discriminant
is negative.
A. Real, irrational and unequal roots C. Real, rational and unequal roots
B. Real and equal roots
D. No real roots
2) What is the value of the discriminant of the equation, x2 + 5x - 4 = 0?
A. -9
B. 9
C. -41
D. 41
3) Which of the following expressions describes the discriminant of the quadratic
equation?
A. -62- 4ac
B. b2 + 4ac
C.-52 + 4ac D. b2 - 4ac
4) In the equation 5x2 – 3x - 7 = 0, what are the values of a, b and c respectively?
A. a = 5, b = 3,c = 7
C. a = 5, b = -3,c = -7
B. a = 5,6 = -3,0 = 7
D. a = 5, b = 3,6 = -7
5) Which of the following quadratic equations has no real roots?
A. 2x2 - 4x = -5
C.x2 - 5x-9= 0
B. 6x2 + 4x = 4
D. 4x2 + 2x - 2 = 0
6) In the quadratic equation x(x - 3) - 2 = 0, what is the value of the discriminant?
A. 17
B. - 17
C. 1
D.-1
7) What is the value of the discriminant of a perfect square trinomial?
A. Positive
B. Negative C. Zero
D. Undefined
8) Find the roots of the equation x2 + 6x - 16 = 0.
A. {-2,8)
C.(-2,-8)
B. {2,-8}
D. {2,8}
9) What is the sum of roots in the equation in Problem 6?
A. 6
C. 10
B. -6
D. -10
Plss