What is the answer to x=55 all u have to do is bring down your x and 55 then that will give u ur answer wich is 55x

Which of the following exponential functions goes through the points (1, 6) and (2, 12)? f(x) = 3(2)x f(x) = 2(3)x f(x) = 3(2)−x f(x) = 2(3)−x