Lesson: Inverse of a Function Mathematics • Second Year of Secondary School

Students will be able to

• recognize the notation for the inverse function: generally the inverse of a function, , is ,
• recognize that if an invertible function, , maps an input, , to an output, , then maps the variable, , to ,
• recognize the conditions for which a function is invertible and be able to state the domain and range of an inverse function,
• evaluate the inverse function from a function mapping diagram, a table of values, or a graph,
• find the inverse of an invertible function, , by changing the subject from to .