Track signs when finding an inverse
For \(f(x)=5x - 5\), find \(f^{-1}\) carefully. State the inverse gradient, inverse \(y\)-intercept, and \(f^{-1}(-5)\).
Worked practice: inverse linear function
Reverse the linear rule, then check the inverse using the requested value.
Write a full answer
Now write the response in full, in your own words — this is what the exam asks for. The AI marks it on the same moves you built above (focus, evidence, technique, judgement) and gives feedback on reasoning, evidence, and expression.