Evaluate the following expression if w = 9, x = 7, and y = 1. x - w/3. answers 6 2/3, 10, 4, 2/3

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.