Which relation is a function? a.{(-4, 5), (0, 2), (2, 5)}
b.{(2, 5), (2, 6), (2, 7)}
c. {(3, 2), (5, 7), (3, -2)}
d. {(4, 3), (4, 4), (4, 5)}

Add the fractions, and simply the result to lowest terms. 2/3 + 2/7= ?

X+y=-4 x-y=2 use elimination with adding and subtraction

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