IB skill practice

Interpret instantaneous rate of change

Use derivative values as instantaneous rates of change in context.

Paper 2 5 marks Difficulty 2

Interpret instantaneous rate of change - instantaneous derivative rate A1

A derivative model is \(f^\prime(x)=3x+4\). Enter the instantaneous rate at \(x=4\).

Worked practice: result and interpretation

Calculate the requested result first, then choose the interpretation that follows from it.