Which of the following statements are true regarding functions? Check all that apply.

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

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

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

d.) the vertical line test may be used to determine whether a relation is a function.

Tim's phone service charges $23.06 plus an additional $0.22 for each text message sent per month. if tim's phone bill was $28.56, which equation could be used to find how many text messages, x, tim sent last month?

Nikolas calculated the volume of the prism. his work is shown below.

Write the contrapositive of the conditional statement. determine whether the contrapositive is true or false. if it is false, find a counterexample. a converse statement is formed by exchanging the hypothesis and conclusion of the conditional. a) a non-converse statement is not formed by exchanging the hypothesis and conclusion of the conditional. true b) a statement not formed by exchanging the hypothesis and conclusion of the conditional is a converse statement. false; an inverse statement is not formed by exchanging the hypothesis and conclusion of the conditional. c) a non-converse statement is formed by exchanging the hypothesis and conclusion of the conditional. false; an inverse statement is formed by negating both the hypothesis and conclusion of the conditional. d) a statement not formed by exchanging the hypothesis and conclusion of the conditional is not a converse statement. true