Which of the following sets of ordered pairs is a function? a) {(2,3) (3,4) (3,5) (5,6) }
b) {(1,5) (2,6) (3,7) (4,8) }
c) {(3,4) (5,7) (5,8) (7,9) }

(1,5) (2,6) (3,7) (4,8)

c is the correct answer

step-by-step explanation:

so far i think you have the right thing going for you just remember soh cah toh

step-by-step explanation:

sine over hypotenuse

cosine   equals adjacent

tangent over hypotenuse