A homeowner is to construct a ramp to their front door to make the house wheelchair accessible. What must the angle of elevation of the ramp be for the ramp to be 15 feet long and reach the front door that is 3 feet high?

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.