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Questions and Answers
What is the standard form of a quadratic equation?
What is the standard form of a quadratic equation?
- $y = mx + b$
- $y = ax^2 + bx + c$
- $x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}$
- $ax^2 + bx + c = 0$ (correct)
What is the discriminant of a quadratic equation used for?
What is the discriminant of a quadratic equation used for?
- To find the sum of the roots
- To determine the number and nature of the roots (correct)
- To factorize the quadratic equation
- To find the vertex of the parabola
What is the vertex form of a quadratic equation?
What is the vertex form of a quadratic equation?
- $x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}$
- $ax^2 + bx + c = 0$
- $y = mx + b$
- $y = a(x - h)^2 + k$ (correct)
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