diff --git a/testing_project/logistic.py b/testing_project/logistic.py
index e49d1c2..5e7a44d 100644
--- a/testing_project/logistic.py
+++ b/testing_project/logistic.py
@@ -1 +1,4 @@
-# Your code goes here
+def f(x,r):
+    return r * x * (1-x)
+
+    
\ No newline at end of file