Quadratic facts, true or false

Exercise and reference answers

Questions

1. Statement is true

   No

   Statement

   In ax² + bx + c = 0, a can be zero.

2. Statement is true

   Yes

   Statement

   b² - 4ac is called the discriminant.

3. Statement is true

   Yes

   Statement

   A positive discriminant gives two distinct roots.

4. Statement is true

   No

   Statement

   A negative discriminant gives real roots.

5. Statement is true

   Yes

   Statement

   x = 2 is a root of x² - 4 = 0.

Instructions

Tap True or False for each statement.

Explanation