# Discriminant MCQs Quiz Worksheet PDF Download

Learn discriminant MCQs, math test for online course learning and test prep to practice. Roots of quadratic equations quiz questions has multiple choice questions (MCQ), discriminant test to learn for math entry level jobs preparation.

Math practice test MCQ on if b² - 4ac < 0, then roots of ax² + bx + c = 0 are with options equal, irrational, rational and imaginary problem solving skills for competitive exam, viva prep, interview questions with answer key. Free math revision notes to learn discriminant quiz with MCQs to find questions answers based online learning tests.

## MCQs on Discriminant Quiz PDF Download

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

- equal
- irrational
- rational
- imaginary

D

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

- equal
- imaginary
- irrational
- rational

A

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

- imaginary
- rational
- equal
- irrational

D

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

- irrational
- real
- equal
- rational

B

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

- discriminant
- square root
- quadratic formula
- completing square method

A