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Check vertical asymptotes of four rational curves

Find the equation(s) of the vertical asymptote(s) for the following curves.

(a) y=1/(3−x)y=1/(3-x).

(b) y=(2x+1)/(x−2)y=(2x+1)/(x-2).

(c) y=x2/(x−1)y=x^2/(x-1).

(d) y=(x2+2x−3)/(x+2)y=(x^2+2x-3)/(x+2).

CJC · Lecture · Self-Practice 2

Use limits to justify asymptotes; use long division when the rational expression is improper.

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