Write the ratio as a unit rate. 286 miles in 5 1/2 hours a. 36 miles per hour b. 52 miles per hour c. 57.2 miles per hour d. 114.4 miles per hour need answer asap

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.