Sep 6, 2019 Thread starter #1 B bwpbruce Member Sep 11, 2014 59 Is this the correct symbol to use for average rate of change: \(\displaystyle \overline{\triangle}=\dfrac{f(b)-f(a)}{b-a} \)

Is this the correct symbol to use for average rate of change: \(\displaystyle \overline{\triangle}=\dfrac{f(b)-f(a)}{b-a} \)

Sep 7, 2019 Admin #2 Klaas van Aarsen MHB Seeker Staff member Mar 5, 2012 8,736 The correct notation for average rate of change is: $$\frac{\Delta f}{\Delta x} = \frac{f(b)-f(a)}{b-a}$$

The correct notation for average rate of change is: $$\frac{\Delta f}{\Delta x} = \frac{f(b)-f(a)}{b-a}$$

Feb 10, 2020 #3 H HallsofIvy Well-known member MHB Math Helper Jan 29, 2012 1,151 I would say that Greg's example is the "standard" or "usual" symbol for rate of change and that there is no "correct" symbol for anything! As long as you define your notation, there is no "incorrect" notation.

I would say that Greg's example is the "standard" or "usual" symbol for rate of change and that there is no "correct" symbol for anything! As long as you define your notation, there is no "incorrect" notation.