In this chapter, we will be learning about functions and their graphs. Functions are like machines that take in numbers and give out other numbers. We will learn how to identify functions by looking at their representations, such as ordered pairs, tables, graphs, and equations. We will also learn how to interpret and draw graphs of functions. By the end of this chapter, we will be able to understand the meaning of functions and confidently identify and analyze their graphs.
• Explain the meaning of functions
• Identify functions and provide justifications based on function representations in the form of ordered pairs, tables, graphs and equations
• Construct tables of values for linear and non-linear functions, and hence draw the graphs using the scale given
• Interpret graphs of functions
• Solve problems involving graphs of functions
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