diff --git a/extra_credit_1/data.csv b/extra_credit_1/data.csv
index d1bb00a..494ccc1 100644
--- a/extra_credit_1/data.csv
+++ b/extra_credit_1/data.csv
@@ -1,3 +1,5 @@
+this data can be found in the pull request for rcc02007/ME3255S2017 data.csv pull requests, and was added here during class
+
 radius (cm), angle (degrees)
 6.3, 39
 6.9, 60