One of the main things you'll be hunting in Calculus is where graphs are increasing and decreasing...? So, we'd better review it!
Check out this graph:
You've got an ant climbing on the graph.? Not just any ant...? Pierre the Mountain Climbing 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):
If Pierre is climbing uphill, then the graph is increasing:
So, our graph is increasing on
(We use interval notation with?X?VALUES!)