I can't express a plt.plot

Question

import numpy as np 
import matplotlib.pyplot as plt

x = np.array([173, 175, 162.5, 178, 160]) 
y = np.array([166, 164, 154, 169, 152])

class Neuron :
 def __init__(self) :
    self.w = 0.000001
    self.i = 0.000001

  def forpass(self, x):
    y_hat = self.w * x + self.i 
    return y_hat
 def backprop(self, x, err) :
    w_grad = x*err
    i_grad = 1*err
    return w_grad, i_grad


  def fit(self, x, y, epochs = 2000):
    for i in range(epochs):
      for x_i, y_i in zip(x, y):
        y_hat = self.forpass(x_i)
        err = -(y_i - y_hat)
        w_grad, i_grad = self.backprop(x_i, err)
        self.w -= w_grad
        self.i -= i_grad

neuron = Neuron()
neuron.fit(x, y)
plt.scatter(x, y)
pt1 = (150, 150 * neuron.w + neuron.i)
pt2 = (180, 180 * neuron.w + neuron.i)
plt.plot([pt1[0], pt2[0]], [pt1[1], pt2[1]])
plt.show()

RuntimeWarning: overflow encountered in double_scalars

There is an overflow error and the plt.plot function cannot be output. I also tried logsumexp, but I still can't print it out. What code should I change to print out the plt.plot function?