Question

Is each relation a function?
1. {(–2, –1), (4, 2), (–8, –4), (6, 3)}

Answer 1

function!

Answer 2

explain

Answer 3

ok :)
soo, a group of coordinates is a function when there are no coordinates that have the same x-value but different y-value.

Answer 4

thanks

Answer 5

yes it is a function because all elements in domain have a corresponding element in range and no domain has corresponding multiple values in range

Answer 6

so (1, 4) and (1, 5) is not because x is same, but y is different