Question

Which of the following relations is a function?
Choose one answer.
a. B = {(1,3), (1,5), (1,10)}
b. C = {(3,4), (3,5)}
c. D = {(5,1), (4,2), (5,2)}
d. A = {(1,4), (2,5), (4,7)}

Answer 1

to be a function the x value can NOT be the same, so which one you think it is

Answer 2

right, u cannot have pairs like (a,b) and (a,c) with b and c different.
so, for instance, C is not a function.

Answer 3

Ahh so it would be d. because the x values are 1, 2, and 4?

Answer 4

correct

Answer 5

Thank you!!

Answer 6

yw :)