location of roots

rounak bhattacharjee

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

Pranav

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

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