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Posted by **Kameesha** on Friday, August 3, 2012 at 6:33pm.

f(x) = -2x^2 + 4x + 5

2. Find the vertical, horizontal, and oblique asymptotes, if any, for the following rational function. R(x) = 5x/x+7

The vertical asymptote(s) is/are x =

The horizontal asymptote(s) is/are y =

The oblique asymptote(s) is/are y =

- College Algebra -
**Steve**, Saturday, August 4, 2012 at 12:38amf(x) = -2x^2 + 4x + 5

= -2(x^2 - 2x) + 5

= -2(x^2 - 2x + 1) + 5 - -2(1)

= -2(x-1)^2 + 7

this is a parabola with vertex at (1,7), opening downwards, with roots at 1 +/- sqrt(14)/2

5x/(x+7) = 5 - 35/(x+7)

has a vertical asymptote at x=-7

and a horizontal asymptote at y=5

no oblique asymptote, since the degree of top and bottom are the same.

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