Cubics And Inflection Points

the rio grande the key to function we're going to take a look at a couple of its profit notice it's increasing been decreasing in an increasingly it so it changes from increasing the decreasing back to increase now let's talk a little bit about the contest what's that so one thing don't you think about when you think about what happened what I think about how the three exchange here to help us think about the ring when did he and in a line give us but the slope is at this point it's wrong it's about that looking at this look at what happens you closer for change from increasing to decrease notice the rate of change the slope this morning is decreasing well we set about this part of the press it's concave them we would expect our school for real change to be decreasing we had a point here with stops decreasing and then it begins the increase well know this from you're on the graph this country about we expect the rate of change increase that's that's what he's getting no name at that point where it's which can it's called and election because the draft platform concave down talking about the ordinary to change but for decreasing to increase and notice this function was increasing and decreasing well this country down so we put increasing would decrease really change and decreasing with a decrease in great shape the opposite happened over here so it's a little bit about and happy with the cubic and introduction to a conflict