Help your students prepare for their Maths GCSE with this free function machines worksheets of 35 questions and answers
Function machines are a way of representing functions. They are sometimes called number machines and they use an input and an output with various operations to represent a function.
Simple functions can be represented by a one-step function machine where there is only one operation. More complex functions may require two-step function machines and so on. Function machines are used by inputting a value and performing the stated mathematical operations in order to calculate the output. Function machines can be used in reverse by using inverse operations to work out the input from a given when an output. It is important to have a strong understanding of the order of operations (also known as bidmas) and inverse operations such as knowing the inverse of addition is subtraction and vice-versa.
We can use function machines for solving equations. They work best with simple linear equations but they can also be applied to more complex functions.
Function machines are also linked to different types of graphs including linear and quadratic graphs. Inputting values into the function and recording the solutions in an output table can help to produce the coordinates to plot the graphs.
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Help your students feel confident with exam-style questions and the strategies they’ll need to answer them correctly with our dedicated GCSE maths revision programme.
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