Identify Functions (Equations)
- Decide whether an equation is a function by checking if each input has exactly one output.
- Tell the difference between a function and a non-function when equations have x and y variables.
identifying functions Worksheets
Free patterns & function machine worksheets with answer key. No login or account needed. From identifying and extending patterns, evaluating function machines, to solving word problems involving patterns and functions, we've got you covered. A grading column and quick grade scale maker grading a breeze and a modified pages help with lower level learners or when just introducing a topic. Great for teachers or for homeschool.
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About these worksheets
Students learn to identify whether a relationship is a function using equations, graphs, and tables. Activities include applying the vertical line test to graphs, checking if each input has exactly one output in tables, finding points that belong to a given function, and matching function equations to tables. Aligned with eighth grade standards.
Identify Functions (Graphs)
- Decide whether a graph represents a function by checking if each x-value matches only one y-value.
- Use the vertical line test to spot graphs that are not functions.
- Identify repeated x-values on a graph and explain why that breaks the function rule.
Identifying Functions (Tables)
- Decide whether an input-output table is a function by checking if each input has exactly one output.
- Spot when a table is not a function because the same input is paired with different outputs.
Identifying Points of a Function in a Graph
- Decide whether a given point could be on the same function shown in a graph.
- Connect a point on a graph to an input-output pair for the function.
Identifying Tables from a Function
- Practice matching a function equation to the correct table of x and y values
- Plug x values into a given equation to check if the y values in each table are correct
- Work with different types of functions including addition, multiplication, and combinations of both