a set of ordered pairs. This set is called the **graph** of the
function. If the ordered pair `(a, b)` is a member of the graph of `f`,
that means that `f` maps the argument `a` to the value `b`. In
a set of ordered pairs. This set is called the **graph** of the
function. If the ordered pair `(a, b)` is a member of the graph of `f`,
that means that `f` maps the argument `a` to the value `b`. In