Which shows solutions to x + 4y = 9 if x and y must be whole numbers.. . a.. . {(0, 9), (1, 4), (2, 1)}. . b.. . {(1, 2), (5, 1), (9,0)}. . c.. . {(0, 9), (1, 5), (2, 1)}. . d.. . {(2, 1), (1, 6), (0, 9)}.

In this problem, we are given with the equation x + 4y = 9 where x and y could be any numbers. we are also given with points that may or may not fit to the equation on the choices. Among these choices, option B. has points that fit to the equation. Answer to this problem is option B.

2015 they have a perecent