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graphing Patterns & Function Machine Worksheets

These graphing worksheets help students visualize patterns and function machines through coordinate graphs. Students practice identifying whether graphs represent functions and determining points that belong to specific functions, building essential skills in reading and interpreting mathematical relationships visually.

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8th Grade

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Identifying Functions

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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.

graphing Patterns & Function Machine Worksheets - Identify Functions (Graphs) worksheet

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Identify Functions (Graphs)

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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.