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Mathematics 18 Online
OpenStudy (anonymous):

Somebody please help ! What is the oblique asymptote of the function f(x) = the quantity x squared plus 5x plus 6 over the quantity x minus 4 ?

jimthompson5910 (jim_thompson5910):

So \[\Large f(x) = \frac{x^2+5x+6}{x-4}\] right?

OpenStudy (anonymous):

yeah

jimthompson5910 (jim_thompson5910):

are you familiar with polynomial long division? or synthetic division?

OpenStudy (anonymous):

yes but i dont remember

jimthompson5910 (jim_thompson5910):

which method do you want to use?

OpenStudy (anonymous):

synthetic

jimthompson5910 (jim_thompson5910):

x^2+5x+6 is really 1x^2+5x+6

jimthompson5910 (jim_thompson5910):

write out the coefficients: 1 5 6 make sure they are spaced out a bit |dw:1404005038408:dw|

jimthompson5910 (jim_thompson5910):

in the denominator is x-4 so the test zero is k = 4. Write that in a box off to the left |dw:1404005070783:dw|

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