Question

Which relations are functions and which are not functions?

Answer 1

???

Answer 2

Column A
1.
{(3, 7), (3, 6), (5, 4),
(4, 7)}
2.
{(1, 5), (3, 5), (4, 6),
(6, 4)}
3.
{(2, 3), (4, 2), (4, 6),
(5, 8)}
4.
{(0, 4), (3, 2), (4, 2),
(6, 5)}

Answer 3

Column B
A.
function
B.
not a function

Answer 4

If for there are more than one point with the same x-coordinate, then it is not a function.

Answer 5

i know how do it just asap cause im leaveing here in like 2 min.

Answer 6

Look at all choices. If you see the same x-coordinate being used more than one, it is a relation, but not a function.

Answer 7

leaving*

Answer 8

WAIT I GOT IT!

Answer 9

1. has 3 and 3. not function
3. has 4 and 4. not function
others are functions

Answer 10

@chosenmatt plz

Answer 11

it is a function i think sorry if im wrong :(

Answer 12

no you dont get it 1 through4 you have to choose on each 1 through 4 if they are a function or not

Answer 13

1. \({(\color{red}{3}, 7), (\color{red}{3}, 6), (5, 4), (4, 7)}\) not function
2. {(1, 5), (3, 5), (4, 6), (6, 4)} function
3. \({(2, 3), (\color{red}{4}, 2), (\color{red}{4}, 6), (5, 8)}\) not function
4. {(0, 4), (3, 2), (4, 2), (6, 5)} function

Answer 14

ok thnx so much

Answer 15

You are welcome.
The numbers in red clearly show repetitions in x. That means it's not a function.

Answer 16

ok thats cool