1. The value of the expression b2-4ac is called ______________.
a. discriminant
b. nature of the roots
c. factoring
d. quadratic formula
2. What is the nature of the roots of a quadratic equation x2-6x+9=0?
a. real and equal
b. rational and not equal
c. irrational and not equal
d. no real roots
3. What is the nature of the roots of a quadratic equation whose value of the
discriminant is equal to 25?
a. real and equal
b. rational and not equal
c. irrational and not equal
d. no real roots
4. If the value of the discriminant is greater than zero but not a perfect square,then the nature of the roots is __________________
a. real and equal
b. rational and not equal
c. irrational and not equal
d. no real roots
5. What is the nature of the roots of a quadratic equation x2-2x+3=0?
a. real and equal
b. rational and not equal
c. irrational and not equal
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