Quadratic Equations Quiz

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Questions and Answers

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?

  • 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?

  • $x = \frac{-b \pm \sqrt{b^2-4ac}}{2a}$
  • $ax^2 + bx + c = 0$
  • $y = mx + b$
  • $y = a(x - h)^2 + k$ (correct)

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