Question

Which relation does not represent a function?

(-8, 4), (-3, 2), (1, 3), (5, -8)

(2, 0), (4, 6), (7, 6), (8, 5)

(-4, 6), (-1, 1), (0, 4), (4, 7)

(1, 2), (2, 5), (5, 7), (1, 3)

Answer 1

The last one, since the domain numbers are not in order of lowest number to highest. D is the answer.!

Answer 2

Look for one where the same x values go to two different y values, this is not a function

Answer 3

Domain does not need to be in order....

Answer 4

But the last is the answer

Answer 5

thanks

Answer 6

Yes it does, the sequence has to be in order from the lowest to highest. A, B, and C are, and D isn't since it goes '1, 2, 5, 1' If the 1 at the end was higher than 5, then it would be a function.

Answer 7

Because 1 goes to 2 and 1 goes to 3

Answer 8

You are very wrong. Sets do not have order. Google it

Answer 9

F(1)=2 and f(1)=3 thus it is not a function

Answer 10

Look at the last line in #1, and the third to last line in #2 here ----> http://www.athometuition.com/functions.php

Answer 11

PS not all functions increase...

Answer 12

The last line says what I said

Answer 13

If x=y then f(x) = f(y)

Answer 14

We have f(1) =2 and f(1)=3

Answer 15

1=1 but f(1) does not equal f(1)

Answer 16

Understand?