diff --git a/education/math/MATH1060 (trig)/Graphing.md b/education/math/MATH1060 (trig)/Graphing.md
index de96bfe..2d5b086 100644
--- a/education/math/MATH1060 (trig)/Graphing.md	
+++ b/education/math/MATH1060 (trig)/Graphing.md	
@@ -78,9 +78,9 @@ Given the form $y = A\tan(Bx - C) + D$ (the same applies for $\cot$)
 # Secant
 $$ y = \sec{x} $$
 ![Graph of secant](assets/graphsec.jpg)
-The reference graph of secant has has a period of $2\pi$, 
-$$ sec(x) = \frac{1}{\cos{x}} $$
 
+$$ sec(x) = \frac{1}{\cos{x}} $$
+Because secant is the reciprocal of cosine, when $\cos{x} = 0$, then secant is undefined. $
 
 # Examples
 > Given $-2\tan(\pi*x + \pi) - 1$