Rational function facts for kids

The rational function

y = \frac{x^2-3x-2}{x^2-4}

. The dotted lines are the asymptotes.

The curve gets closer and closer to touching the asymptote (the red line) but never does.

A rational function is a polynomial divided by a polynomial. f(x) = x/x − 3 is a rational function.

An asymptote is a line that a curve gets closer and closer to touching but never does.

See also