Table of values x: -2, -1, 0, 1, 2 and y: -2, 2, 6, 10, 14 , where is the slope in that?

Which order pair could be removed so that the set of order pairs is a function

The scatter plot shows the number of animal cells clara examined in a laboratory in different months: plot ordered pairs 1, 20 and 2, 60 and 3,100 and 4, 140 and 5, 180 what is the approximate predicted number of animal cells clara examined in the 9th month?

Angle m aoc=108° m aob=3x+4° m boc=8x-28° find m aob