How to create plot in Spyder

import numpy as np
import matplotlib.pyplot as plt

t = np.linspace(0, 40, 1000) # start, finish, n points
d_r = 2.5 * t
d_s = 3 * (t-5)

plt.title('A Bank Robber Caught')
plt.xlabel('time (in minutes)')
plt.ylabel('distance (in km)')

fig, ax = plt.subplots()
ax.set_xlim([0, 40])
ax.set_ylim([0, 100])
ax.plot(t, d_r, c='green')
ax.plot(t, d_s, c='brown')
plt.axvline(x=30, color='purple', linestyle='--')
_ = plt.axhline(y=75, color='purple', linestyle='--')