While at the beach daniel buys lunch for his family from a good stand he purchases one hotdog for 2.50 and 3 hamburgers if he spent a total of 13$ total write and solve an equation to find h the amount of each hamburger cost

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.