How can you find the horizontal asymptote of a rational function without graphing or using a table? Use a calculator to explore these functions, and look for patterns. Some equations may not have horizontal asymptotes. Make a conjecture about how to determine the equation of a horizontal asymptote just by looking at the equation.

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3x2+4-5 2x2 4 23 2 7 7 7 3 2x 5