Question: what is iroc in math?
Answer: The instantaneous rate of change at some point x0 = a involves first the average rate of change from a to some other value x. So if we set h = a − x, then h = 0 and the average rate of change from x = a + h to x = a is ∆y ∆x = f(x) − f(a) x − a = f(a + h) − f(a) h .