graphs

graphs

1. axes

   • x
     • horizontal
     • x is across
   • y
     • vertical

2. simplest graphs

   • number graphs
     • y=2
     • x=5

3. straight line graphs

   • y=mx+c
   • m=gradient
   • c=y intercept

4. gradient

   • shows how steep graph is
   • negative gradient slopes down
   • positive gradient slopes up