# Determine if the Relation is a Function (t,t) , (s,s) , (r,r) , (y,t)

(t,t) , (s,s) , (r,r) , (y,t)
Since there is one value of y for every value of x in (t,t),(s,s),(r,r),(y,t), this relation is a function.
The relation is a function.
Determine if the Relation is a Function (t,t) , (s,s) , (r,r) , (y,t)