ANSWER:
A. (-8, 5)
B. (1, 1)
C.the answer is yes it is a function bc the x values are unique and linear.
TIP: to determine if a graph is a function you can use a vertical line test, if you draw a vertical line (a line up and down) and it intercepts the graph two more times, this is a relation and not a function.
~batmans wife dun dun dun...aka ~serenitybella