Asked by suryap2 | 26th May, 2010, 04:20: PM
How do you find the zeroes of a polynomial p(x) from the graph of y=p(x)?
The intersection of polynomial graph on the x-axis gives the roots.
Write the zeroes of the polynomial if the graph of y=p(x), the parabola, intersects the x-axis at (-3, 0) and (-1, 0).
The roots are x coordinate values, i.e. -3 and -1.
Give an example of polynomials f(x), g(x), q(x) and r(x) satisfying f(x) =g(x)q(x)+r(x) where deg r(x) = 0.
g(x) = x2 + 1
q(x) = x
r(x) = 2
Hence f(x) = x(x2+1) + 2 = x3 + x + 2
Answered by | 26th May, 2010, 05:16: PM
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