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4.  Write a program to display line chart from (2,5) to (9,10).

                  Ans.  [1]:  import matplotlib.pyplot as plt
                             import numpy as np
                             # Define X and Y variable data
                             x = np.array([2,3,9,10])
                             y = x*2
                             plt.plot(x, y)
                             plt.xlabel("X-axis")  # add X-axis label
                             plt.ylabel("Y-axis")  # add Y-axis label
                             plt.title("Line Chart")  # add title
                             plt.show()
                                                 Line Chart
                                20
                                18

                                16
                               Y-axis 14
                                12
                                10
                                 8
                                 6
                                 4
                                    2   3    4   5    6   7    8   9   10
                                                   X-axis

                   5.  Write a program to display a scatter chart for the following points (2,5), (9,10),(8,3),(5,7),(6,18).
                 Ans.   [1]:  import matplotlib.pyplot as plt
                             import numpy as np
                             (2,5), (9,10),(8,3),(5,7),(6,18)
                             x = np.array([2,9,8,5,6])
                             y = np.array([5,10,3,7,18])
                             plt.xlabel("X-axis")  # add X-axis label
                             plt.ylabel("Y-axis")  # add Y-axis label
                             plt.title("Scatter Chart")  # add title
                             plt.scatter(x, y)
                             plt.show()
                                               Scatter Chart
                               18
                               16

                               14
                               Y-axis 12
                               10
                                8

                                6
                                4
                                   2    3    4     5    6    7    8    9
                                                   X-axis



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