Question

Which of the following statements are true regarding functions?

A)A series is a function whose domain is the set of real numbers.

B)A function is a relation in which each value of the input variable is paired with exactly one value of the output variable.

C)The vertical line test may be used to determine whether a function is one-to-one.

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

Answer 1

B is true.

Answer 2

there is more than one answer