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Mathematics 13 Online
OpenStudy (anonymous):

r(x)=3x^2-13x+12/x^2-5x+6. first factor, then find the horizontal and vertical asymptotes and the coordinates of the hole in the graph

OpenStudy (anonymous):

I got it factored to (3x+4)(x+3)/(x-3)(x-2)

OpenStudy (anonymous):

the numerator is factored incorrectly

OpenStudy (anonymous):

the "middle term" is \(-13x\) so it would factor as \((3x-4)(x-3)\)

OpenStudy (anonymous):

ok I see!

OpenStudy (anonymous):

horizontal asymptote would be y=3 and the vertical ones would be x=3 and x=2?

OpenStudy (anonymous):

no

OpenStudy (anonymous):

\[\frac{(3x-4)(x-3)}{(x-3)(x-2)}\] you can cancel the common factor of \(x-3\) which means there is a "hole" at \(x=3\) not a vertical asymptote

OpenStudy (anonymous):

that gives you \[\frac{3x-4}{x-2}, x\neq 3\] so the only vertical asymptote is \(x=2\)

OpenStudy (anonymous):

your horizontal asymptote is correct, it is \(y=3\)

OpenStudy (anonymous):

ok awesome! thank you so whenever you can cancel out like that, is that the hole?

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