Which table does not represent a function? a. x f(x) 0 1 2 3 3 4 4 5 5 6 6 7 b. x f(x) -3 9 -2 4 -1 1 0 0 1 1 2 4 c. x f(x) 0 3 2 3 3 3 4 3 5 3 6 3  d. x f(x) 0 -1 2 3 0 4 2 5 0 6 2 7

21 type the correct answer in the box. use numerals instead of words. if necessary, use / for the fraction bar. the solution set of n2 - 14n = -45 is { (separate the solutions with a comma)