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Mathematics 8 Online
OpenStudy (hkmiu):

x(x+2) / x(x-3) would the holes be x=-2 & x=3 or just x=3?

jimthompson5910 (jim_thompson5910):

hint: solve x(x-3) = 0

OpenStudy (hkmiu):

well both -2 and 3 are equals to 0

jimthompson5910 (jim_thompson5910):

oh wait, the 'x' terms will cancel

jimthompson5910 (jim_thompson5910):

x(x+2) / x(x-3) would turn into (x+2)/(x-3)

jimthompson5910 (jim_thompson5910):

So this means that there is a vertical asymptote at x = 3 and there's a hole at x = 0 because this value must be excluded as well

OpenStudy (hkmiu):

Waittt, but the (x+2) won't have anything to do with it because that's used for determining the horizontal only right?

jimthompson5910 (jim_thompson5910):

the x+2 in the numerator plays no role in figuring out vertical asymptotes or holes (unless it canceled with a x+2 in the denominator)

jimthompson5910 (jim_thompson5910):

the leading coefficients determine the horizontal asymptote

OpenStudy (hkmiu):

thanks!

jimthompson5910 (jim_thompson5910):

you're welcome

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