Write rational function equation given graph

samedi 30 novembre 2013

On The graph, the following information was given:

Point of discontinuity( -2,0) and (1,-3)

X intercept at ( 2,0)

Yintercept (0,-4)



This is what I had : (x+2)(x-2)(x-1)/ (x+2)(x-1)



But the answer is that u have to put (x+2)^2 in the numerator instead of what I had.

But I thought that the point of discontinuity was on that spot ( xintercept) and thus it would not be counted that there was an xintercept AND a point of discontinuity at that spot. Can someone explain this to me?






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