Rational Function: A mathematical function that can be expressed as a ratio of two polynomials. It often represents relationships involving division or fractions.
Inverse Relationship: A relationship between two variables where one variable increases while the other decreases, and vice versa. In this case, as x increases, y decreases and vice versa.
Asymptote: A line that a graph approaches but never touches. The graph of 1/x has two asymptotes: the x-axis (y = 0) and the y-axis (x = 0).