The list shows the number of hikers who visited a hiking trail each day for two weeks. 10 19 30 25 38 26 8 9 16 35 39 20 15 42 Describe appropriate intervals for the horizontal axis for the histogram of the data.

The input to the function is x and the output is y. write the function such that x can be a vector (use element-by-element operations). a) use the function to calculate y(-1.5) and y(5). b) use the function to make a plot of the function y(x) for -2 ≤ x ≤ 6.