Which of the following statements are true? Check all that apply.
1) The graph of f(x) = 1/2 x looks like the graph of f(x) = 3x
2) The graph of f(x) = 1/2 x is steeper than the graph of f(x) = 3x
3) The graph of f(x) = 1/2 x has a higher y-intercept than the graph of f(x) = 3x
4) The graph of f(x) = 1/2 x has a lower x-intercept than the graph of f(x) = 3x