diff --git a/manimlib/mobject/number_line.py b/manimlib/mobject/number_line.py
index 1e50692e..8736ee6c 100644
--- a/manimlib/mobject/number_line.py
+++ b/manimlib/mobject/number_line.py
@@ -99,7 +99,7 @@ class NumberLine(Line):
         return result
 
     def get_tick_marks(self):
-        return self.tick_marks
+        return self.ticks
 
     def number_to_point(self, number):
         alpha = float(number - self.x_min) / (self.x_max - self.x_min)
diff --git a/manimlib/scene/graph_scene.py b/manimlib/scene/graph_scene.py
index 6bfc6d34..cc3faf78 100644
--- a/manimlib/scene/graph_scene.py
+++ b/manimlib/scene/graph_scene.py
@@ -82,7 +82,7 @@ class GraphScene(Scene):
         if len(self.x_labeled_nums) > 0:
             if self.exclude_zero_label:
                 self.x_labeled_nums = [x for x in self.x_labeled_nums if x != 0]
-            x_axis.add_numbers(*self.x_labeled_nums)
+            x_axis.add_numbers(self.x_labeled_nums)
         if self.x_axis_label:
             x_label = TexText(self.x_axis_label)
             x_label.next_to(
@@ -116,7 +116,7 @@ class GraphScene(Scene):
         if len(self.y_labeled_nums) > 0:
             if self.exclude_zero_label:
                 self.y_labeled_nums = [y for y in self.y_labeled_nums if y != 0]
-            y_axis.add_numbers(*self.y_labeled_nums)
+            y_axis.add_numbers(self.y_labeled_nums)
         if self.y_axis_label:
             y_label = TexText(self.y_axis_label)
             y_label.next_to(