diff --git a/43. Ridge Regression Loss Function b/43. Ridge Regression Loss Function
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+++ b/43. Ridge Regression Loss Function	
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+import numpy as np
+
+def ridge_loss(X: np.ndarray, w: np.ndarray, y_true: np.ndarray, alpha: float) -> float:
+	# Your code here
+	x = np.array(X)
+    w = np.array(w)
+    y_true = np.array(y_true)
+
+    y_pr = x @ w
+
+    loss = np.mean((y_pr - y_true)**2)
+
+    reg = alpha * np.sum(w**2)
+
+    final_loss = loss + reg
+
+    return final_loss