Equations and Complex Numbers

If the discriminant is equal to -7 the roots will be...

• Real, rational & equal

• Real, rational & different

• Real, irrational & different

• Non-real & different

If the discriminant of a quadratic equation is less than zero, the roots are:

• real and equal

• real and unequal

• not real

Which of the following statements are true of the discriminant?

• The discriminant is the radicand of the quadratic formula.

• The discriminant is the denominator in the quadratic formula.

• The discriminant is b² - 4ac in the quadratic formula.

Solve by factoring

• -4, 2

• -2, 4

• -16

• -4