Question

Determine if each of the following relations is a function.
a) h={(r,s), (t,u), (v,u), (t,s), (r,u)}
b) j={(l,n), (n,l), (o,p), (p,o), (q,l)}

Answer 1

a relation is a function when there is only one output for any given input

Answer 2

@triciaal so is part a) a function?

Answer 3

@amirreza1870 can you please help me with this question?