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I need to find an equation for a rational function with the following asymptotes:
vertical asy: x=6, and x=-1
horizontal asy: y=-9

thanks for any help!!!

2006-11-09 07:33:47 · 2 answers · asked by Anonymous in Science & Mathematics Mathematics

2 answers

To have vertical asymptotes at x = 6 and x = -1, the denominator should have factors of (x - 6) and (x + 1), making it x^2 - 5x - 6. To have a horizontal asymptote of -9, the numerator should be of the same order as the denominator, but with a coefficient for the greatest exponent of x that is -9 times that of the denominator. The denominator is 2nd order with a coefficient of 1 for x^2, so the numerator can be -9x^2.

-9x^2 / (x^2 - 5x - 6)

2006-11-09 07:38:53 · answer #1 · answered by DavidK93 7 · 1 0

i think these should work

-9x^2/[(x-6)(x+1)]

-9x^2/(x^2-5x-6)

2006-11-09 15:40:46 · answer #2 · answered by igot4onit 2 · 1 0

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