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Increasing and Decreasing about Functions Review

One to the main things you'll are hunting in Calculus is where graphs are increasing and decreasing...  So, we'd better review it!

Examine out this diagram:

a graph

You've got einer ant climbing on the graph.  Not just any ant...  Pierre the Mountain Climbing Ant!

Pierre the Mountain Mountain Ant!!

(He's kind of a pathetic math super hero.)  For this, the rule is that Pierre only crawls from left to right (like we read):

Pierre all walking from left to right
 

If Peer is climbing laborious, then the graph is increasing:

on the intervals ( -infinity , -3 ) U ( 1 , 4 ) Pierre the climbing uphill ... that the graph is increasing

So, our graph is increasing on
 

( -infinity , -3 ) U ( 1 , 4 )

(We use interval notes with EFFACE VALUES!)