d. y
a.
C.
1. What is the nature of the roots of the quadratic equation if the value of its discriminant is
negative?
a. the roots are not rea
b. the roots are irrational and not equal
c.the roots are rational and not equal d. the roots are rational and equal
2. Which of the following is the standard form of a quadratic equations?
a. ax2+ bx + c <0 a 0
b. ax2 + bx + c =0, a 0
c. Ax + By + C = 0
= mx + b
3. How many real roots does the quadratic equation 3x2 + 7x + 10 = 0 have?
0
b. 1
2
d. 3
4. Which of the following is a quadratic equation?
a. 3m - 7 = 12
c. 2x2 + 2x > 3
b. -5n2 + 4n - 1 d. x2 + 2x + 3 = 0
5. What are the roots of the quadratic equation x2-3x - 10 = 0?
a. 2 and 5 b. -2 and 5
c. -10 and 1 d. 10 and - 1
6. The length of a wall is 17m more than its width. If the area of the wall is less
than 60m2, which of the following could be its length?
a. 3m
b. 16m
c. 18m
d. 20m
7. The length of a garden is 5m longer than its width and the area is 36m2. How
long is the garden?
a. 4m
b. 5m
c. 9m
d. 13m
8. The length of a garden is 4m more than twice its width and its area is 38m2.
Which of the following equations represents the given situation?
a. 2x2 + 4x = 19
c. x2 + x 19
b. x2 + 2x = 19
d. x2 + 2x = 38
9. This is the value of the expression b2 - 4ac in the quadratic formula.
a. quadratic equation
b. quadratic inequality
c. discriminant
d. irrational roots
10. Which of the following quadratic equations has the roots 3 and -1?
a. x2 + 2x + 8 = 0 b. x2 - 2x + 8 = 0 c. x2 + 2x - 8 = 0 d. x2 - 2x - 8 = 0
11. Which of the following quadratic equations has no real roots?
a. 6m2 + 4m = 3
b. t? - 5t-9 = 0
c. 2s2 4s = -4
d. 4r2 + 2r - 5 = 0​