Question

The relation {(1, -3), (-2, 0), (4, 1)} is a function.

True
False

Answer 1

what is a function?

Answer 2

In mathematics, a function[1] is a relation between a set of inputs and a set of permissible outputs with the property that each input is related to exactly one output

Answer 3

do u knw domain and ranges?

Answer 4

no

Answer 5

if a function is defined as f(x) = y
it implies, the function f takes x as input and produces y as out put
example : y = 2x+3
in this x is the input and it can take all Real values
but in function \[y = \frac{ x }{ x-3 }\]
x is input as before, but it cannot take value 3 ( because at x =3 , the y becomes undefined).
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THE SET OF INPUT VALUES THAT A FUNCTION CAN TAKE IS CALLED ITS DOMAIN.
and
THE SET OF OUTPUT VALUES THAT A FUNCTION CAN PRODUCE IS CALLED ITS RANGE:

Answer 6

@ofwgkta9574 and @Hope_nicole

Answer 7

Simply we will write them as ( x , y ) pairs in some cases.