diff --git a/q01_plot/build.py b/q01_plot/build.py
index 0425964..ec4db4d 100644
--- a/q01_plot/build.py
+++ b/q01_plot/build.py
@@ -1,8 +1,29 @@
+# %load q01_plot/build.py
+# Default imports
 import matplotlib.pyplot as plt
+plt.switch_backend('agg')
 import seaborn as sns
 import pandas as pd
 
 data = pd.read_csv('data/house_prices_multivariate.csv')
-plt.switch_backend('agg')
 
-# Write your code here :
+# Write your code here:
+
+def plot(num_cols):
+    fig, axes = plt.subplots(2, 2,)
+    axes[0, 0].hist(data.LotArea,)
+    axes[0, 1].hist(data.GarageArea)
+    axes[1, 0].hist(data.OpenPorchSF)
+    axes[1, 1].hist(data.SalePrice)
+    plt.show()
+plt.hist(data.GarageArea,bins=20)
+fig, axes = plt.subplots(2, 2,)
+axes[0, 0].hist(data.LotArea,)
+axes[0, 1].hist(data.GarageArea)
+axes[1, 0].hist(data.OpenPorchSF)
+axes[1, 1].hist(data.SalePrice)
+plt.show()
+from inspect import getfullargspec
+getfullargspec(plot)
+
+
diff --git a/q02_plot/build.py b/q02_plot/build.py
index 67b4924..9622b7a 100644
--- a/q02_plot/build.py
+++ b/q02_plot/build.py
@@ -1,11 +1,36 @@
+# %load q02_plot/build.py
 # Default imports
 import pandas as pd
 import matplotlib.pyplot as plt
+plt.switch_backend('agg')
 import seaborn as sns
 
 data = pd.read_csv('data/house_prices_multivariate.csv')
-plt.switch_backend('agg')
 
 
 # Write your code here:
+def plot(num_cols):
+     _, args=plt.subplots(2,2)
+     if num_cols>0:
+        args[0,0].boxplot(data.LotArea)
+     if num_cols>1:
+        args[0,1].boxplot(data.GarageArea)
+     if num_cols>2:
+        args[1,0].boxplot(data.OpenPorchSF)
+     if num_cols>3:
+        args[1,1].boxplot(data.SalePrice)
+
+plt.boxplot(data.GarageArea)
+num_cols=10
+_, args=plt.subplots(2,2)
+if num_cols>0:
+    args[0,0].boxplot(data.LotArea)
+if num_cols>1:
+    args[0,1].boxplot(data.GarageArea)
+if num_cols>2:
+    args[1,0].boxplot(data.OpenPorchSF)
+if num_cols>3:
+    args[1,1].boxplot(data.SalePrice)
+plot(5)
+
 
diff --git a/q03_regression_plot/build.py b/q03_regression_plot/build.py
index 2aaf8f6..6cf8528 100644
--- a/q03_regression_plot/build.py
+++ b/q03_regression_plot/build.py
@@ -1,16 +1,23 @@
+# %load q03_regression_plot/build.py
 # Default imports
 
 import pandas as pd
 import seaborn as sns
 import matplotlib.pyplot as plt
+plt.switch_backend('agg')
 
 
 data = pd.read_csv('data/house_prices_multivariate.csv')
-plt.switch_backend('agg')
 
 
 # Write your code here
+def regression_plot(var1,var2):
+    sns.lmplot(x=var1,y=var2,data=data)
+
+
 
 
+sns.lmplot(x='SalePrice',y='GrLivArea',data=data)
+regression_plot('SalePrice','GrLivArea')
 
 
diff --git a/q04_cor/build.py b/q04_cor/build.py
index f3fae50..a9e247c 100644
--- a/q04_cor/build.py
+++ b/q04_cor/build.py
@@ -1,10 +1,19 @@
+# %load q04_cor/build.py
 # Default imports
 import pandas as pd
 import matplotlib.pyplot as plt
+plt.switch_backend('agg')
 import seaborn as sns
 
 data = pd.read_csv('data/house_prices_multivariate.csv')
-plt.switch_backend('agg')
 
 
 # Write your code here
+def cor(data):
+    sns.heatmap(data.corr())
+
+
+data.corr()
+sns.heatmap(data.corr())
+
+