Function Worksheets

Printable “Function” worksheets:
What is a Function
Linear Function & Proportionality

Examples, solutions, videos, and worksheets to help Grade 7 and Grade 8 students understand of the definition of a function. Students recognize that some, but not all, functions can be described by an equation between two variables.

What is a function?

A function is a correspondence between a set (whose elements are called inputs) and another set (whose elements are called outputs) such that each input corresponds to one and only one output. The correspondence is often given as a rule (e.g., the output is a number found by substituting an input number into the variable of a one-variable expression and evaluating).

The function as a rule that assigns to each element of one set of objects one, and only one, element from a second set of objects.

Functions are sometimes described as an input–output machine.

Have a look at this video if you need to review what are functions?.

• What Are Functions?

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More Function Worksheets

Printable
(Answers on the second page.)
Function Worksheet #1
Function Worksheet #2
Function Worksheet #3
Function Worksheet #4
Function Worksheet #5

Related Lessons & Worksheets

How to Define a Function
More Printable Worksheets

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