CK12 Calculus - Single Variable

We observethat the slopesof the tangentlines to the graphchangefrom negativeto positiveat
The first derivativetest verifiesthis fact. Notethat the slopesof the tangentlines to the graphare negative
for and positivefor
LessonSummary

1. We foundintervalswherea functionis increasingand decreasing.


2. We appliedthe First DerivativeTest to find extremaand sketchgraphs.
   ReviewQuestions
   In problems#1–2,identifythe intervalswherethe functionis increasing,decreasing,or is constant.(Units
   on the axesindicatesingleunits).

1.