Question

help with functions?

Answer 1

what do you need help on exactly?

Answer 2

{(7,5),(-6,0),(2,3)}
{(7,5),(-6,0),(-6,-2), (2,3)}
{7,-6,2,-7}
{(7,5), (-6,0),(7,3)}
which one of these are a function?
and how?

Answer 3

ok first of all there is a rule that the domain (x) cannot be repeated (ex: #2)

Answer 4

you mean the -6?

Answer 5

yup

Answer 6

do you see how it is repeated in the domain?

Answer 7

ok so that is not the function? and yes the x

Answer 8

yup you're right

Answer 9

ok i see that one

Answer 10

so can you cancel out any others? from knowing that?

Answer 11

umm the last one

Answer 12

yup!

Answer 13

so the first one is it? the function?

Answer 14

well i have a question is the second one 2 separate pairs or is it one whole one?

Answer 15

my guess would be the whole one

Answer 16

does that make sense?

Answer 17

yeah i guess because when you go back and look at it that is the only one that makes sense :)

Answer 18

lol thats true! thank you!

Answer 19

no problem just glad to help :)