Pls help me, i am very confused and i have no idea what to do, i will give brainliest and 35 points you only have to do part one and part three, i can do part two.​

Look at the following graph of the given equation. determine whether the equation is a function. explain why or why not.

The estimated number of people to attend the last bengals game of the season was 2000. the actual number of fans attending was 1200. by what percent did the estimate differ from the actual?

If a || b and b | y, then ? a) x || y. b) x | a. c) a | y. d) a || y.