IB Maths AI SL 2.6 Modelling process
IB Maths AI SL 2.6 Modelling process
Students practise evaluating model validity by checking domain restrictions, asymptotic behaviour, sign consistency, and fit against real-world constraints.
How this is tested
- reject a logarithmic word-count model at t = 1 because −167 + 6264 log₁₀(1) yields negative words
- state that a phone depreciation model fails because hardware cannot remain functional indefinitely
- compare r² values (0.766 vs 0.923) to justify why one temperature model fits data better