Does a rate of change need to be positive
17 Oct 2017 Remember that the rate of change of your position tells you how fast you are walking - your velocity. So, in this case, you will have a positive 21 Aug 2017 But more formally, it means that, whenever b > a, we must always have f(b) > f(a). ) Beyond f increasing, there is little else one can say about f. FYI: You will learn in later courses that the "average rate of change" in non-linear If we rename x1 to be a, and x2 to be b, we will have the new formula. increasing on an interval, its average rate of change on that interval is positive.".