11th Biology

Quadratic Equations Quiz 🧠

1. What is the **standard form** of a quadratic equation?

A) \(ax + b = 0\) B) \(ax^2 + bx + c = 0\) C) \(ax^3 + bx^2 + cx + d = 0\)

2. For the equation \(x^2 - 5x + 6 = 0\), what are the **roots**?

A) \(x = 2\) and \(x = 3\) B) \(x = -2\) and \(x = -3\) C) \(x = 1\) and \(x = 6\)

3. The **discriminant** of a quadratic equation is given by which formula?

A) \(\sqrt{b^2 - 4ac}\) B) \(b^2 + 4ac\) C) \(b^2 - 4ac\)

4. If the discriminant (\(b^2 - 4ac\)) is **positive**, what can you conclude about the roots?

A) There are no real roots B) There are two distinct real roots C) There is one real root

5. Which of the following is **NOT** a common method to solve a quadratic equation?

A) Factoring B) Graphing C) The Pythagorean theorem