Given a list of four integers [a,b,c,d] representing two points (a, b) and (c, d), calculate the length of the line joining these two points. Instead of a list, you can assign values to four variables. You will need to use the distance formula in order to solve this problem. Learn more about the distance formula here: http://www.purplemath.com/modules/distform.htm Note: you will have to nest the Scratch operators correctly in order to get this to work. Test cases: [-2, 1, 1, 5] --> (-2, 1) and (1, 5) = 5 [2, 3, 2, 6] --> (2, 3) and (2, 6) = 3 [1, 3, 6, 3] --> (1, 3) and (6, 3) = 5 [1, 2, 3, 4] --> (1, 2) and (3, 4) = 2.828 [1, 2, 13, 8] --> (1,2) and (13, 8) = 13.4