2.2 Lösning 4a

$${\Delta y \over \Delta x} = {f(100) - f(0) \over 100 - 0} = {0,04\cdot 100 + 5 - (0,04\cdot 0 + 5) \over 100} =$$

$$= {4 + 5 - 5 \over 100} = {4 \over 100} = 0,04$$