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# Identifying Functions Worksheets

Identifying functions worksheets are up for grabs. Equip 8th grade and high school students with this printable practice set to assist them in analyzing relations expressed as ordered pairs, mapping diagrams, input-output tables, graphs and equations to figure out which one of these relations are functions based on the pairing of the domain (x) and range (y). Our free worksheets are a good choice to start with.

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Identifying Functions | Relation - Ordered Pair

An input value and its corresponding output value make an ordered pair. Analyze each set of ordered pairs rendered in these pdf worksheets and state whether each relation is a function.

Identifying Functions | Relation - Table

Examine the inputs (x-coordinates) and outputs (y-coordinates) keenly. The criterion for a relation to be a function is that each input should have only one output. Also, x-coordinates shouldn't be duplicated.

Identifying Functions | Relation - Mapping

Mapping is a graphical representation of how the elements of the domain and range are paired. One-to-one and many-to-one domain-range relations are functions, while one-to-many are not.

Inspect the graph to see if any vertical line drawn would intersect the curve more than once. If it does, the graph does not represent a function, else it does. This batch of printable worksheets is ideal for grade 8 and high school.

When a relation is denoted as an equation, the dependent variable y is expressed in terms of x, the independent variable. For a relation to be a function, there should be one y-value for any x-value inserted.