Answer:
3.
A) is a function because each x goes the one of the ys
B) is not a function due to the x repeating. u can't have that
4.
yes it represents a function cause it passes the vertical line test.
Answer: i dunno what '.......' was suppose to mean but 11 + 15 + 19 + 83 = 128
Step-by-step explanation: b more specific dood -_-