### Home > CALC > Chapter 3 > Lesson 3.1.2 > Problem 3-34

3-34.

Δ*x* can be translated as 'change in *x*.' *h* typically appears in the expression: (*x* + *h*) −*x*. How are these equivalent?

'Definition of the Derivative' is the same thing as 'Instantaneous Rate of Change': IROC