Question

Which relation is a function?

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

B.
{(1, 2); (2, 3); (3, 4); (1, 5)}

C.
{(1, 2); (2, 3); (3, 4); (2, 5)}

D.
{(1, 2); (1, 3); (1, 4); (1, 5)}

Answer 1

i thinks its a

Answer 2

So, in order to be a fn, what is the main condition that needs to be met?

Answer 3

the x vaules do not have to repeat?

Answer 4

That is correct, the math-y way to say that is: The domain only corresponds to one element of the range.

Answer 5

so then a is correct then

Answer 6

yup yup

Answer 7

basically, that is the verbal representation of the vertical line test

Answer 8

ty