Identifying Functions Worksheet and Answer Key | Algebra 1

Identifying Functions Worksheets Bundle | Graphs Tables Mappings | 8th Grade

Three worksheets in which students are required to determine if a given relationship is a function or not. More precisely, they have to identify functions from sets of ordered pairs, tables of values, mapping diagrams and graphs. This is a good introduction to the notion of functions. There is one worksheet on mapping diagrams, one worksheet on graphs and one worksheet on all ways of representing a function. Detailed solutions are included. Are you looking for a comprehensive, no-prep resource to help your students master identifying functions? This **Identifying Functions Maths Worksheets Bundle** contains 3 complete practice pages designed to build confidence with every single functional representation! This resource is perfect for daily practice, independent classwork, homework assignments, revision, or maths intervention. Just print and pass it out! **What is Included in This Bundle?** This 3-worksheet pack gives students multiple ways to practice and show what they know: * **Worksheet 1: Ordered Pairs & Tables** – Students examine sets of coordinate points and input/output tables to see if they represent functions. * **Worksheet 2: Mapping Diagrams** – Students analyze visual mapping webs to find missing outputs or inputs mapped to multiple numbers. * **Worksheet 3: Graphs** – Students practice applying the vertical line test to linear graphs, curves, circles, and scatter plots. * **Complete Solution Key** – Step-by-step answers are included for all 3 pages, making grading easy or allowing for student self-checking! **Curriculum & Educational Standards Covered** * **Key Stage 3 (KS3) & Key Stage 4 (KS4) Maths:** Aligns perfectly with the National Curriculum algebra requirements for understanding mappings, defining inputs/outputs, and interpreting algebraic relationships graphically. * **GCSE Mathematics (Foundation & Higher):** Excellent for reinforcing core function concepts across all UK exam boards (AQA, Edexcel, OCR), ensuring students can confidently recognize functions from graphs, coordinate pairs, and data tables before advancing to composite or inverse functions.