diff --git a/tf_2.x/lab-03-1-Linear-Regression-and-Minimizing-Cost-eager.ipynb b/tf_2.x/lab-03-1-Linear-Regression-and-Minimizing-Cost-eager.ipynb
index 5a2719d..65fe387 100644
--- a/tf_2.x/lab-03-1-Linear-Regression-and-Minimizing-Cost-eager.ipynb
+++ b/tf_2.x/lab-03-1-Linear-Regression-and-Minimizing-Cost-eager.ipynb
@@ -567,8 +567,8 @@
     }
    ],
    "source": [
-    "x_data = [1., 2., 3., 4.]\n",
-    "y_data = [1., 3., 5., 7.]\n",
+    "X = [1., 2., 3., 4.]\n",
+    "Y = [1., 3., 5., 7.]\n",
     "\n",
     "W = tf.Variable(tf.random.normal((1,), -100., 100.))\n",
     "\n",
@@ -687,8 +687,8 @@
     }
    ],
    "source": [
-    "x_data = [1., 2., 3., 4.]\n",
-    "y_data = [1., 3., 5., 7.]\n",
+    "X = [1., 2., 3., 4.]\n",
+    "Y = [1., 3., 5., 7.]\n",
     "\n",
     "W = tf.Variable([5.0])\n",
     "\n",