Type:Interactive, Lesson Plan
This resource has been contributed by Winpossible, and can also be accessed on their website by clicking here - Determine the number of solutions of a quadratic equation
It explains how to determine number of solutions of a quadratic equation. For a given general quadratic equation y = ax2
+ bx + c, the number and type of roots can be determined by graphing it on the cartesian plane. If we do that, the x-intercepts will be the solutions or roots of the equation. If the graph intersects the x-axis only at one point, then the roots are real and equal, and the quadratic equation has only one solution. If the graph intersects the x-axis at two points, then the roots are real and distinct, and the quadratic equation has two solutions. If the does not intersect y-axis at all, then the roots are imaginary.
This FREE mini-lesson is a part of Winpossible's online course that covers all topics within Algebra I. Click on the video below to go through it. If you like it, you can buy our online course in Algebra I by clicking here.
- Mathematics > General
- Mathematics > Algebra
- Education > General
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Keywords:determine solutions video roots graphing quadratics equation x intercept intersection point factoring point roots equation practice questions quizzes
License Deed:Creative Commons Attribution 3.0