Which expression represents the horizontal asymptote of the rational function as ?

Answer and explanation

Correct answer: D. The horizontal line

  1. Step 1: When degrees of numerator and denominator are equal, the horizontal asymptote is the ratio of leading coefficients: . Step 2. Therefore, . **Answer: The horizontal line . Why not the others:** applies when the denominator degree is higher; an oblique asymptote occurs when the numerator degree is exactly one greater.

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