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Rational Functions

Video Summary:

Rational Function - A function f of the form p/q defined by where p(x) and q(x) are polynomials, with q(x)  0, is called a rational function. Non-decimal vs. Decimal Window A non-decimal window (or connected mode) connects plotted points. A decimal window (or dot mode) plots points without connecting the dots. Use a decimal window when plotting rational functions such as If y is plotted using a non-decimal window, there would be a vertical line at x = –1, which is not part of the graph



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