Determine whether each relationship represented by the ordered pairs is a function. Select all that apply.
(2.2), (3,1), (5,7), (8,9), (9,8)
0 (2,2), (3,1), (2,7), (8,9), (7,8)
(1,2), (3,4), (5,6), (7,8), (9,10)
(1,1), (2,2), (3,3), (4,4), (5,5)
(1,2), (2,3), (3,4),(4,5), (5,6)

Questions 9-10. use the table of educational expenditures to answer the questions. k-12 education expenditures population indiana $9.97 billion 6.6 million illinois $28.54 billion 12.9 million kentucky $6.58 billion 4.4 million michigan $16.85 billion 9.9 million ohio $20.23 billion 11.6million 9. if the amount of k-12 education expenses in indiana were proportional to those in ohio, what would have been the expected value of k-12 expenditures in indiana? (give the answer in billions rounded to the nearest hundredth) 10. use the value of k-12 education expenditures in michigan as a proportion of the population in michigan to estimate what the value of k-12 education expenses would be in illinois. a) find the expected value of k-12 expenditures in illinois if illinois were proportional to michigan. (give the answer in billions rounded to the nearest hundredth) b) how does this compare to the actual value for k-12 expenditures in illinois? (lower, higher, same? )