Question

When looking at the graph of a relation, explain how to tell if the relation is a function.

Answer 1

Is it possible for me to draw a vertical line (straight up and down) that passes through my graph MORE THAN ONCE?

Answer 2

dod u get it

Answer 3

Yeah I got it .. I'm not sure .. That's all it says . :/

Answer 4

every input there's one unique output.. that's the basic definition of a function..
in simple terms: the x values should not be repeated..

Answer 5

^ Is that the answer ? Cause I'm really confused on this one ...

Answer 6

no, that's not the answer.. i'm just explaining.

Answer 7

Oh okay , So how would I go about explaining it . ?

Answer 8

http://www.virtualnerd.com/algebra-1/relations-functions/functions/function-notation/identify-difference

Answer 9

Thank you . c:

Answer 10

your welcome