import numpy as np
import matplotlib.pyplot as plt

Функция А: у=4^x

x = np.linspace(-2, 2, 400)
y = 4**x

plt.figure(figsize=(8, 6))
plt.plot(x, y, label='y = 4^x')
plt.xlabel('x')
plt.ylabel('y')
plt.title('Graph of y = 4^x')
plt.grid(True)
plt.legend()
plt.show()

Функция Б: y=(1/4)^x

y = (1/4)**x

plt.figure(figsize=(8, 6))
plt.plot(x, y, label='y = (1/4)^x')
plt.xlabel('x')
plt.ylabel('y')
plt.title('Graph of y = (1/4)^x')
plt.grid(True)
plt.legend()
plt.show()

Функция В: y=3^x-2

y = 3**x - 2

plt.figure(figsize=(8, 6))
plt.plot(x, y, label='y = 3^x-2')
plt.xlabel('x')
plt.ylabel('y')
plt.title('Graph of y = 3^x-2')
plt.grid(True)
plt.legend()
plt.show()