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# Algebraic Functions

## Identify functions using coordinate pairs

Levels are CK-12's student achievement levels.
Basic Students matched to this level have a partial mastery of prerequisite knowledge and skills fundamental for proficient work.
At Grade (Proficient) Students matched to this level have demonstrated competency over challenging subject matter, including subject matter knowledge, application of such knowledge to real-world situations, and analytical skills appropriate to subject matter.
Advanced Students matched to this level are ready for material that requires superior performance and mastery.

## Vertical Line Test

Learn how to determine whether or not a relation is a function.
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## Algebraic Functions

Determine if a given relation or graph is a function.
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• PLIX

## Algebraic Functions: Vertical Line Test

Algebraic Functions Interactive
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• Video

## SAT Math (Algebra and Functions) - Practice 3.3

Overview
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• Video

## Relations and Functions: A Sample Application

This video demonstrates a sample application of relations and functions.
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• Video

## SAT Math (Algebra and Functions) - Practice 3.4

Overview
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• Video

## Relations and Functions: An Explanation of the Concept

This video provides an explanation of the concept of relations and functions.
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• 4
• Critical Thinking

## Vertical Line Test Discussion Questions

A list of student-submitted discussion questions for Vertical Line Test.
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• Real World Application