Question

Is this relation a function? {(−1, 0), (−1, 2), (1, 5), (2, −8)}

Answer 1

No, it is not a function

Explanation:

because at least one input maps to more than one output.

-1 is giving more than one output. (-1,0) (-1,2)

for it to be a function, -1 must have only ONE output! :D

Answer 2

No, it is not a relation function

Explanation: