All it takes for a relation to be a function is for each possible first number of a pair there's only one possible second number.
So if any of the sets has two pairs with the same first number, that one's not a function.
The last one has (3,2) and (3,5) so isn't a function.
Answer:
Step-by-step explanation:
The straight line graph is the one that shows a direct, proportional relationship.
Answer:
$235
Step-by-step explanation:
X= per party A= per song
X*200+5*A
He goes to a party and plays 7 songs therefore he will be paid;
200+ 5*7= $235
