Determine which relation is a function.
a. {(1,2), (2,3), (3,4), (4,5)}
b. {(2,2), (3,2), (4,2), (1,2)}
c. {(5,7), (5,8), (5,1), (5,3)}
d. {(1,2), (5,8), (1,4), (3,8)}

A. {(1,2), (2,3), (3,4), (4,5)}

Step-by-step explanation:

A function is a relation in which no two ordered pairs have the same first element, so answer A is the correct choice

goog may have it for you

1/8 3/16 3/4

step-by-step explanation:

you put them as all the same denominator and multiply