IB skill practice

Evaluate functions and use notation

Evaluate functions, interpret notation, and distinguish inputs from outputs.

Paper 1 5 marks Difficulty 2

Recognise when different inputs give the same output

For \(f(x)=-x^{2}+6x\), calculate both outputs and the output change from \(2\) to \(4\).

Worked practice: function notation

Evaluate the function at the requested inputs and compare the change in output.