Select the correct answer. which relation is a function? a. {(2, 3), (1, 5), (2, 7)} b. {(-1, 5), (-2, 6), (-3, 7)} c. {(11, 9), (11, 5), (9, 3)} d. {(3, 8), (0, 8), (3, -2)}

Dimitri used a coupon that saved him 80 percent, or $6.87. he paid $34.35 for the items.dimitri used a coupon that saved him 80 percent, or $27.48. he paid $34.35 for the items.dimitri used a coupon that saved him 80 percent, or $6.87. the price of the items before the discount was $34.35.dimitri used a coupon that saved him 80 percent, or $27.48. the price of the items before the discount was $34.35.