This is a free lesson from our course in Algebra I
In this you'll learn how to determine number of solutions of a quadratic equation.
For a given general quadratic equation y = ax^{2} + bx
+ c, the number and type of roots can be determined by graphing it on the cartesian plane. If you do that, the xintercepts will be the solutions or roots of
the equation. If the graph intersects the xaxis only at one point, then
the roots are real and equal, and the quadratic equation has only one solution.If the graph intersects the xaxis at two points, then the roots are real
and distinct, and the quadratic equation has two solutions. If the does not intersect
yaxis at all, then the roots are imaginary.
Winpossible's online math courses and tutorials have gained rapidly popularity since
their launch in 2008. Over 100,000 students have benefited from Winpossible's courses...
these courses in conjunction with free unlimited homework help serve as a very effective
mathtutor for our students.

All of the Winpossible math tutorials have been designed by topnotch instructors
and offer a comprehensive and rigorous math review of that topic.

We guarantee that any student who studies with Winpossible, will get a firm grasp
of the associated problemsolving techniques. Each course has our instructors providing
stepbystep solutions to a wide variety of problems, completely demystifying the
problemsolving process!

Winpossible courses have been used by students for help with homework and by homeschoolers.

Several teachers use Winpossible courses at schools as a supplement for inclass
instruction. They also use our course structure to develop course worksheets.