python code i. Add a function named readfile() to your program that takes a string (filename) as the parameter. You can assume that this file contains a single string. Your function must read the file and return this string. ii. Add a function named scramble() that takes a string parameter (e.g., x). You can assume that x has even length. This function must create two strings such that the first string (e.g., y) is composed of all even numbered characters in x and the second string (e.g., z) is composed of all odd numbered characters in x. For example, if x = "abcdefgh" then y is "aceg" and z is "bdfh". Your function must return these strings (e.g., y and z). iii. Add a function named writefile() to your program that takes three strings as parameter, a filename and two scrambled strings (e.g., y and z), in this order. You function must write these strings y and z on separate lines in the file. This function does not return anything.

Problem A straight line can be defined by a pair of points p1(x1, yı) and p2(x2, y2). The slope m of a line is defined as follow: У2 — У1 m = X2 - X1 Your program reads the points from a text file called 'points.txt’ which contains the coordinates of unknown number of pairs of points as shown in Figure 1. Each line contains four values x1, y1, x2, y2, where x1, yl are the coordinates of the first point and x2, y2 are the coordinates of the second point. 10 -2 7.5 -3.2 4 15.5 -4.6 21 -2 Зр 12.5 6. 2 5 -3 -6 10 3 10 15 Figure 1. Input file contains unknown number of point pairs Use Spider, to create the following files: (i) The input file 'points.txt' shown in Figure 1. Your Python program that reads from the input file 'points.txt', the coordinates of unknown number of pairs of points, computes the corresponding slopes then prints the results on the screen as shown in Figure 2. (ii) Line # X1 Y1 X2 Y2 slope 1 10.00 -2.00 7.50 -3.20 0.48 2 4.00 15.50 -4.60 21.00 -0.64 3 0.00 0.00 0.00…

In Python.

9b_act2. Please help me answer this in python programming.