pre-calculas

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Find the slant asymptote, if any, of the rational function. Do not graph the function. (Enter your answers as a comma-separated list of equations. If an answer does not exist, enter DNE.)
f(x) =
x2 − 2x + 15
_____________
x + 7

  • pre-calculas -

    do a long algebraic or a synthetic division to show that

    (x^2 - 2x + 15)/(x+7)
    = x-9 + 78/(x+7)

    the slant asymptote is
    y = x-9

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