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Determine the horizontal, vertical, and slant asymptotes: y=x2+2x-3/x-3

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Answer:

vertical asymptote: x = 3

slant asymptote: y = x+5

Explanation:

You want the vertical and slant asymptote of the graph of the rational function ...

y = (x² +2x -3)/(x -3)

Quotient

Using synthetic division (see the first attachment), we find the quotient to be (x+5) and the remaining rational function term to be 12/(x-3).

Vertical asymptote

There is a vertical asymptote at the value of x where the denominator is zero: x = 3.

Slant asymptote

The slant asymptote is the polynomial part of the quotient:

y = x +5

The asymptotes are the orange dashed lines in the second attachment.

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Determine the horizontal, vertical, and slant asymptotes: y=x2+2x-3/x-3-example-1
Determine the horizontal, vertical, and slant asymptotes: y=x2+2x-3/x-3-example-2
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