f(n) = y and n = x
just a matter of subbing...I will be subbing 6 in for y and 2 in for x
A. f(n) = n + 3
y = x + 3
6 = 2 + 3
6 = 5 (nope...so its not A)
B. f(n) = 1/3n
y = 1/3x
6 = 1/3(2)
6 = 2/3 (nope....not this one either)
C. f(n) = 3n
y = 3x
6 = 3(2)
6 = 6 (got it.....its this one)
