Question

Which of the following best describes the ordered pairs listed below? Dont answer it for me just tell me how to tell if it's a function or relation or both or neither

2, -2), (0, -4), (4, -8), (8, -12)
A. both a relation and a function
B. function only
C. relation only
D. neither a relation nor a function

Answer 1

A function is a (x,y) value. In order to be a function the "x" value CAN'T repeat, but it doesn't matter if the "y" value repeats

Answer 2

For example: (4,5) , (6,1) , (2,7).
That's a function because the "x" value does not repeat. The "x" value is, the first number. In this case it's 4,6,2

Answer 3

A relation is a set of numbers, or pairs. There is nothing special about the numbers that are in a relation. its just a set of ordered pairs. {} is the symbol for "Set". An example:
{(0,1) , (55,22) , (3, -50)}

Answer 4

Oh and the numbers always have to be in parenthesis!!!
Like these: (9,0) , (3,1)
This would not be considered: 5,6 , 4,2)

Answer 5

it is both