Which of the following rules could represent the function shown in the table? x y
-1 -1
0 1
0 3

O f() = -2 x
O f(x) = 2 x-1
O f(x) = 2 x + 1

Yes, that is the correct formula. to solve this problem given the number of years, plug in the number of years for t and plug the whole thing into the