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30 April, 2008

Geometrical Representation of polynomials

  • Linear Polynomial
    The graph of a linear polynomial of the form ax+b, a not equal to zero is a straight line which intersects the x-axis at exactly one point . The value of x coordinate of the point where the line meets x- axis is zero of the polynomial.
Consider the following graph

This is a grpah of linear polynomial 2x+3. It intersects the x-axis at point (-1.5,0) .

So, the linear polynomial 2x+3 has one zero given by -1.5 (x-coordinate of point where line cuts the x-axis)

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