Discriminant MCQs, discriminant quiz answers to learn high school math courses online. Roots of quadratic equations multiple choice questions (MCQs), discriminant quiz questions and answers for online school degrees. Math: quadratic equation, complex cube roots of unity, solution of quadratic equations, discriminant test prep for high school teacher certification.

Learn math MCQs: if b² - 4ac < 0, then roots of ax² + bx + c = 0 are, with choices equal, irrational, rational, and imaginary for online school degrees. Free math student portal for online learning discriminant quiz questions, MCQs to find questions answers based online learning tests.

MCQ: If b² - 4ac < 0, then roots of ax² + bx + c = 0 are

1. equal
2. irrational
3. rational
4. imaginary

D

MCQ: If b² - 4ac = 0, then roots of ax² + bx + c = 0 are

1. equal
2. imaginary
3. irrational
4. rational

A

MCQ: If b² - 4ac >0, and not a perfect square then roots of ax² + bx + c = 0 are

1. imaginary
2. rational
3. equal
4. irrational

D

MCQ: If b² - 4ac >0, then roots of ax² + bx + c = 0 are

1. irrational
2. real
3. equal
4. rational

B

MCQ: Nature of roots depends on value of b² - 4ac is known as

1. discriminant
2. square root