9. Which of the following relations are functions? Choose all that apply. Assume that each different variable has a different value.
{(a, b),(ba),(C, C),(e, d)}
{(1,4),(c, d).(0,6)
{(6.b).(c, d).(2.c).(4.a)
{(a, b).(5.c).(c, d).(d.)

step-by-step explanation:

the shape,the size and the distance

answer: i believe the answer is e

step-by-step explanation:

the functions have the same rate of change i think. i narrowed it down to this answer and "the rate of change of tour 1 is greater" but i got it wrong using that answer so im assuming its the answer above. (this is a question i also answered from the iready site if anyone needs a reference)