Problem
Write a function in Calculus λ that takes as input a directed graph, g, and the identifiers of two vertices, a and b, and returns a list with the path from a to b. If there is no path from a to b your function should return the empty list.
You can represent the graph as you see fit (and explain it) and you can also identify the vertices as you see fit.
The response must include a reference list. Using Times New Roman 12 pnt font, double-space, one-inch margins, and APA style of writing and citations.