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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
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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
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X-axis
Python Practical Questions 305

