ASAP 7 POINTS + LINK TO A 50 POINT QUESTION Which of the following will always represent a function?

1: a table of pairs of numbers

2: an equation in the form y = mx + b

3: a list of ordered pairs

4: a list of numbers

Link to 50 point question:

Amajor grocery store chain is trying to cut down on waste. currently, they get peaches from two different distributors, whole fruits and green grocer. out of a two large shipments, the manager randomly selects items from both suppliers and counts the number of items that are not sell-able due to bruising, disease or other problems. she then makes a confidence interval. is there a significant difference in the quality of the peaches between the two distributors? 95% ci for pw-pg: (0.064, 0.156)