Warm-up!
Unit 1 Day 2 (1.1+1.4):
Concavity
Points of Inflection
HW: Concavity Worksheet
Find the average rate of change of 𝑓𝑥 over the interval −2,2 
For each interval listed below, decide if it is possible that the rate of change of 𝑓𝑥 is constant over that interval?
−4≤𝑥≤0                 0≤𝑥≤4                 2≤𝑥≤6                 6≤𝑥≤10
Give an interval over which the average rate of change of 𝑓𝑥 is zero.