IB skill practice

Identify key features of quadratic functions

Find intercepts, axis of symmetry, vertex, domain, and range from a quadratic in expanded or factorised form, with solution language suitable for IB markschemes.

Paper 1 6 marks Difficulty 2

Read features from a negative quadratic

For \(f(x)=-(x + 1)(x - 5)\), find the \(x\)-intercepts, \(y\)-intercept, axis of symmetry, vertex, and range.

Worked practice: read the quadratic graph

Work through the graph features in order. You can type plain text or LaTeX-style notation.