Functions: Interpreting Functions
This website from Khan Academy was found in OER Commons. https://www.khanacademy.org/commoncore/grade-HSF-F-IF
This site teaches Interpreting Functions to High Schoolers through a series of 3578 questions and interactive activities aligned to 38 Common Core mathematics skills.
The site covers many topics related to functions. Students can complete sections based on their areas of weakness.
Students can also complete this Quizizz created by ajpeters on Domain, Range, and determining if a function exists or not: https://quizizz.com/admin/quiz/58821885e25a309e567ea70e.