Question

Is the relation a function?
(10, 5), (1, 8), (3, 3), (4,2), (1, 7)

Answer 1

yes

Explanation:

Answer 2

it's not a function.

Explanation:

Not a function: a function can be a one-one or a many-to-one relation NOT a one-to many relation as this one is.

It is one-to-many because 1 maps to 8 and 7 , as shown by the ordered pairs (1, 8) and (1, 7).