A set of ordered pairs that has each value of the x-coordinate only once is a function.
Heres the answer attached above
Answer:
y = 14
Step-by-step explanation:
move 5y over to the left and you should get -2y +6=-18. subtract 6from both sides and you will now have -2y=-24. divide bothe sides from -2 and you will get y=14
Im pretty sure its the commutative property.