Can you help me with some revision questions for mathematics on the topic mappings and relations

Sure! Here are some possible revision questions on the topic of mappings and relations:

1. What is a mapping or function in mathematics?
2. How is a mapping typically written using notation? Can you give an example?
3. What is the domain of a mapping? How is it defined?
4. What is the range or image of a mapping? Can you explain the difference between these two terms?
5. How can you tell if a mapping is one-to-one or injective? What about onto or surjective?
6. Can a mapping be both one-to-one and onto? If so, what do we call such a mapping?
7. What is a composition of mappings? How do you perform composition in mathematics?
8. Can you find an inverse function for a given mapping? Under what conditions does a mapping have an inverse?
9. What is the graph of a mapping? How can you use the graph to understand the behavior of the mapping?
10. What are some real-life examples of mappings or functions? How can they be useful in solving problems or making predictions?