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Mathematics 17 Online
OpenStudy (anonymous):

How do you find the x-intercept for a quadratic equation in a graph PLEASE HELP I AM SOOOOO LOST

OpenStudy (anonymous):

They are the points (or point) where the graph touches (or crosses) the x-axis. They are the zero of the quadratic equation, its roots, and so on.

OpenStudy (anonymous):

so how do i find it

OpenStudy (anonymous):

http://www.purplemath.com/modules/quadform.htm

OpenStudy (anonymous):

You can graph it and check where the graph touches the x-axis or you can solve the quadratic equation and find the roots. Those are the x-intercepts.

OpenStudy (anonymous):

On a note, there could be 2 real intercepts, 1 or none.

OpenStudy (lgbasallote):

factor out your quadratic equation...equate the factors to zero...find x

OpenStudy (lgbasallote):

or if non-factorable use completing the square/quadratic equation to find x

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