A. Which of the following tables represent valid functions? f(x) f(x) f(x) f(x) -1 -2 -2 -3 -1 -2 -1 -3 1 2 3 1 1 3 2 1 4 6 3 6 3 6 4 7 9 9 8 8 9 9. 8 11 11 14 12 15 2 1 Briefly explain your reasoning. B. Let ? represent an unknown input or output. Which of the following tables MIGHT BE ABLE TO be functions? "MIGHT BE ABLE TO' means that table will represent a function for some selection(s) of the question mark(s) but will not represent a function for other choices. P(x) m(x) r(x) n(x) V(x) 30 269 30 269 30 140 30 269 140 269 ? 454 139 139 140 139 454 140 454 191 490 191 490 191 140 191 490 140 490 207 158 207 158 207 140 292 140 158 292 230 292 230 292 140 292 230 140 230 410 376 410 376 410 140 410 376 140 376 487 101 487 101 487 140 487 101 140 101 6.