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Mathematics 15 Online
OpenStudy (anonymous):

quick clarification on graphing rational functions.. for the function g(x) - -2x^2-2x+12 / x^2-9 the x-intercepts are -3,2 and i also found that there is a hole at (-3, -5/3) also there is a vertical asymptote at x=-3 and 3 but when i graph, since there is a hole at x=-3, does that mean that i dont have to graph an asymptote? cause when i do that it's wrong ...

OpenStudy (anonymous):

do i have a graph an asymptote at x=-3 (is what i meant)

OpenStudy (anonymous):

@amistre64

OpenStudy (amistre64):

you should indicate asymptotes yes

OpenStudy (amistre64):

the function is bad for x=-3 and 3, so they should be noted on the graph so that others simply dont have to guess at it.

OpenStudy (amistre64):

if its a hole, not an asymptote, then you draw an open circle in the line indicating it

OpenStudy (anonymous):

but when i graph on calculator, i dont see the asymptote at x=-3

OpenStudy (amistre64):

its an infinitesimal point ... but its still a whole there

OpenStudy (anonymous):

would the graph be like this? |dw:1428356856540:dw|

OpenStudy (anonymous):

with the asymptote

OpenStudy (amistre64):

|dw:1428356835407:dw|

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