Write a program that plots two functions: f(0) = 72 and g(x) = ax. Write it in such a way that the intersection points are marked with an X, for arbitrary a. . You may use your favorite ready-made function to find the intersection points, if not: One possible way to tackle this problem is to put both function values in arrays and check using a for loop and an if statement when the sign of their difference changes. This can be done in a third array. As always, layout matters: add a title, label the axes and lines