Question

Medal Awarded!
Which of the following statements are true regarding functions?

Check all that apply.

A function is a relation in which multiple values of the input variable are paired with at least one of the output variable.

A sequence is a function whose domain is the set of rational numbers.

The vertical line test may be used to determine whether a relation is a function.

The horizontal line test may be used to determine whether a function is one-to-one.