Topic explanation

Standard explanation

A one-one function has an inverse found by writing y=f(x), interchanging x and y, and solving for y.

Key points

• Inverse functions
• rule
• worked example
• Inverse functions: A one-one function has an inverse found by writing y=f(x), interchanging x and y, and solving for y.
• CONCEPT AND RULE: A one-one function has an inverse found by writing y=f(x), interchanging x and y, and solving for y.
• METHOD: For inverse functions, identify the given information and required result. Select the matching defin
• A one-one function has an inverse found by writing y=f(x), interchanging x and y, and solving for y.
• Worked pattern: For f(x)=3x-6, f^-1(x)=x+63.

Labelled diagram