The y-intercept of any function is the value of the function when x = 0.
- The y-intercept of f(x) is f(0) = 4(0) - 1. This is equal to -1.
- The y-intercept of g(x) is g(0), which we can see from the graph is 2.
- The y-intercept of h(x) is h(0), which is cos(0 + 2pi). This is equal to 1.
Therefore, g(x) has the greatest y-intercept.