2. Functions

Discriminants — Quiz

Test your understanding of discriminants with 5 practice questions.

Practice Questions

Question 1

For the quadratic equation $ax^2+bx+c=0$, which expression is called the discriminant?

Question 2

If a quadratic equation has discriminant greater than $0$, how many real roots does it have?

Question 3

If the discriminant of a quadratic equation equals $0$, what does this tell you about the roots?

Question 4

If the discriminant of a quadratic equation is less than $0$, what can you conclude?

Question 5

What is the discriminant of the quadratic equation $x^2-5x+6=0$?