Quadratic expressions and equations
Essential Mathematics Year 10
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Welcome to the world of Quadratic Equations and the Quadratic Formula. In a previous video we looked at how the formula could be used to find the solutions to a whole range of problems. But it has a much more powerful use. Well, the part under the square root! The discriminant is an awesome way to find the number of solutions to a quadratic equation. We can use it to find if there are one, two or no solutions. It's also helpful when trying to find the axis of symmetry! So much fun in such a short lesson.
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Video tags
quadratic equations
quadratic equations by quadratic formula
discriminant and quadratic formula
discriminant of a quadratic equation
discriminant analysis
discriminant formula
discriminant and nature of roots
number of solutions to equations
number of solutions of quadratic equations
axis of symmetry
axis of symmetry of a parabola
axis of symmetry equation