IB skill practice

Model with restricted functions

Use function models with practical domain, range, and validity restrictions.

Paper 1, Paper 2 5 marks Difficulty 4

Model with restricted functions - visual asymptote link

For the restricted quadratic model shown, \(f(x)=(x+2)^{2}\). Enter the vertex \(x\)-coordinate.

Worked practice: result and interpretation

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