12 would be the number of people in each group. because as you divide 60 to 5..... 12 people are divided sperately into 5 groups.. hope this helps and if you have any questions go ahead and ask! JESUS LOVES YOU
Not a function because of the vertical line test. Domain is [-2,∞] since the left most point is -2 and the right is unbounded. Range is (-∞,∞) since it is not bounded in terms of y.