maksud nya apa ya??please..

t₁ = 1 hari. h₁ = 2 cm
t₄ = 4 hari, h₄ = 16 cm
v = __?

kecepatan rata-rata pertumbuhan
v = ∆h / ∆t
v = (h₄ - h₁) / (t₄ - t₁)
v = [(16 - 2) cm] / [(4 - 1) hari]
v = 14/3 cm/hari ← jwb