_______ 1. It is the standard form of the equation x
2
- 8x = -15.
A. x
2
+ 8x -15 = 0 B. x
2
- 8x + 15 = 0 C. x
2
- 8x = 15 D. x
2
- 8x -15 = 0
_______ 2. They are the values of a, b, and c in the equation 5x = (2x + 1)2
.
A. a = -4, b = -1, c = 1 C. a = 2, b = -5, c = 1
B. a = 4, b = -1, c = 1 D. a = -4, b = -7, c = - 1
_______ 3. The nature of the roots of b
2
– 4ac = -12, are;
A. Real and are equal C. not equal and not real roots
B. Rational but are not equal D. irrational and are not equal
_______ 4. The equation has irrational and not equal roots when?
A. Discriminant = 0 C. Discriminant 0 and a perfect square D. Discriminant > 0 but not a perfect square
_______ 5. In the quadratic equation 3x2
– 3x – 5 = 0, which is the quadratic term?
A. x2
B. 3x2
C. – 3x D. – 5
_______ 6. If the standard form of a quadratic equations ax2 +bx + c = 0, which of the following is
an example? A. 2r2
+ 4r 1 C. s2
+ 5s 4 = 0
B. 3t – 7 =2 D. 2x2
– 7x ≥ 3
_______ 7. If ax2 +bx + c = 0 is a quadratic equation, which of the following has the roots of -5 and 3?
A. x2
- 8x +15 = 0 C. x2
- 2x -15 = 0
B. x2
+ 8x +15 = 0 D. x2
+ 2x -15 = 0
_______ 8. A quadratic equation has at most two zeroes. Which of the following has the zeroes of
-3 and 7? A. x
2 + 4 x -21 = 0 C. x
2
- 4 x -21 = 0
B. x
2
- 4 x + 21 = 0 D. x2 + 4 x +21 = 0
_______ 9. Which of the following is the standard form of x (x-4) = 1?
A. x
2
- 4x -1 = 0 C. x
2 + 4x +1 = 0
B. x
2 + 4x -1 = 0 D. x
2
- 4x +1= 0
_______ 10. Find the roots of the quadratic equation x
2
+x - 56 = 0
A. 2 and 1 B. 8 and -7 C. -8 and 7 D. 3 and -2
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Answer:
1.C
2.D
3.A
4.D
5.D
6.C
7.A
8.B
9.A
10.B