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22 Jan 2012 11:54:46 IST

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location of roots

Mathematics

please clarify the concept of location of roots of quadratic equation...

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Pranav

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Joined: 5 Feb 2012

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5 Feb 2012 12:16:30 IST

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when you plot the points in a graph you will get a parabola (i.e a 'U' shaped curve)

the points where the parabola intersects x axis are the roots of the equation.

For eg. Let ( x² + x -2 = 0) be the equation.Then if we put x=1 we will get 0.

Therefore 1 is a root of the equation.

Pranav

Cool goIITian

Joined: 5 Feb 2012

Posts: 97

5 Feb 2012 12:17:03 IST

Like 0 people liked this

when you plot the points in a graph you will get a parabola (i.e a 'U' shaped curve)

the points where the parabola intersects x axis are the roots of the equation.

For eg. Let ( x² + x -2 = 0) be the equation.Then if we put x=1 we will get 0.

Therefore 1 is a root of the equation

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