Which statement is true for all functions f(x)? O The graph of f(kx) is the graph of f(x) shifted left or right by kunits.
O The graph of –f(x) is the graph of f(x) reflected over the x-axis.
O The graph of –f(x) is the graph of f(x) reflected over the y-axis.
O The graph of f(x) + k is the graph of f(x) shifted left or right by|k| units.