A function is given by a table of values, a graph, a formula, or a verbal description. Determine whether it is one-to-one.
$f(x)$ is one-to-one
we're deciding here whether or not F is 1 to 1 and for a function to be oneto one every X value can have only one y value, and every y value can have only one X value. So when we look at the table, we see no repeated X values and we see no repeated why values so f is 1 to 1.