diff --git a/Documentation1.md b/Documentation1.md
index 28f94fa..68fbc6e 100644
--- a/Documentation1.md
+++ b/Documentation1.md
@@ -1,19 +1,20 @@
 # Name: 
+Force()
 
 ## Examples:
-Insert examples here.
+Force(10,5)
+Returns 50
 
 ## Description:
-Insert description here
+Calculates force by multilying mass and acceleration.
 
 ## Syntax:
-Demonstrate syntax here
+force(m,a)
 
 ##Parameters: 
-Name and describe parameters here
+float m - mass
+float a - acceleration
 
 ##Returns:
-What type of data does it return?
+float f - force
 
-##Other notes:
-Anything else?
diff --git a/Documentation2.md b/Documentation2.md
index 28f94fa..9e4f147 100644
--- a/Documentation2.md
+++ b/Documentation2.md
@@ -1,19 +1,21 @@
 # Name: 
+slope()
 
 ## Examples:
-Insert examples here.
+slope(14,15,12,16)
+Returns -.5
 
 ## Description:
-Insert description here
+Calculates the slope of a line from two points on the line
 
 ## Syntax:
-Demonstrate syntax here
+slope(r1x,r1y,r2x,r2y)
 
 ##Parameters: 
-Name and describe parameters here
+float r1x - x coordinate of first point
+float r1y - y coordinate of first point
+float r2x - x coordinate of second point
+float r2y - y coordinate of second point
 
 ##Returns:
-What type of data does it return?
-
-##Other notes:
-Anything else?
+float m - slope
diff --git a/Documentation3.md b/Documentation3.md
index 28f94fa..5e87231 100644
--- a/Documentation3.md
+++ b/Documentation3.md
@@ -1,19 +1,21 @@
 # Name: 
+donut()
 
 ## Examples:
-Insert examples here.
+donut(width/2,height/2,200)
+Draws a donut in the middle of the window.
 
 ## Description:
-Insert description here
+Draws a colored circle then a black circle 1/3 its size
 
 ## Syntax:
-Demonstrate syntax here
+donut(x,y,diam);
 
 ##Parameters: 
-Name and describe parameters here
+x - x coordinate of donut
+y - y coordinate of donut
+diam - diameter of donut
 
 ##Returns:
-What type of data does it return?
+Displays donut
 
-##Other notes:
-Anything else?
diff --git a/FunctionsChallenge/FunctionsChallenge.pde b/FunctionsChallenge/FunctionsChallenge.pde
new file mode 100644
index 0000000..59dc1a2
--- /dev/null
+++ b/FunctionsChallenge/FunctionsChallenge.pde
@@ -0,0 +1,31 @@
+//physics
+float force(float m, float a) {
+  float F = m*a;
+  return F;
+}
+
+//math
+float slope(float r1x, float r1y, float r2x, float r2y) {
+  float m = (r2y - r1y)/(r2x-r1x);
+  return m;
+}
+
+//visual
+void donut(float x, float y, float diam){
+  fill(random(255),random(255),random(255));
+  ellipse(x,y, diam, diam);
+  fill(0);
+  ellipse(x,y, diam/3,diam/3);
+}
+
+void setup(){
+  background(0);
+  size(800,600);
+  noStroke();
+}
+
+void draw() {
+  println(force(10, 5));
+  println(slope(14, 15, 12, 16));
+  donut(width/2,height/2,200);
+}
\ No newline at end of file