4. What is the standard form of the equation x(2-3x)+ 9 = 0?

a.-3x²-2x+9=0 b. 3x2+2x+9=0

c. -3x²+2x+9=0

d. 3x²-2x+9=0

5. What are the roots of the quadratic equation

x²+2x-63=0?

a. 21 and 3 c. 9 and - 7

b. - 21 and 3

d. - 9 and 7

6. Which of the following quadratic equation can

be easily solved by extracting the square roots?

a. x²-4x-21-0

b. 4x²-25=0

c. 3x2-6x-21=0 d. x²+9x+18=0

7. What is the nature of the roots of a quadratic

equation with discriminant of 20?

a. Real, rational and equal b. Real, rational and not equal

c. Real, irrational and not equal

d. No real roots

8. Which of the following is the standard form of

(m+2)²+9=0?

a. m2+4m=13 c. m2+4m+13=0 b. m²-4m=13 d. m²+13=0

9. Which of the following equations represents a quadratic function?

a. y=x² - 4x - 21 c. y² + 2y - 15-0 d. (x-8)2 = 0

b. x² + 5x-3

10. It is the graph of quadratic function.

a. U-shaped curve b. Sideway S

c. Parabola d. Hyperbola