The point (1,5) on the graph of f(x) means x = 1 and y = 5
So we plug x = 1 into f(x) to get f(1) = 5
If we replace x with x-1, then we have x = 1 turn into x-1 = 1. Solve for x to get x = 2
So this means that the point (2,5) is on the graph of f(x-1). Every point on f(x-1) will be the result of shifting a corresponding point on f(x) 1 unit to the right.
------------------------------------------
Final Answer: (2,5)