# Linear equations and functions

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Lessons

Graphing proportional relationshipsSolutions to linear equationsInterceptsQuiz 1SlopeIntro to slope-intercept formQuiz 2Graphing slope-intercept formWriting slope-intercept equationsQuiz 3Functions & function notationLinear modelsQuiz 4Comparing linear functionsConstructing linear models for real-world relationshipsQuiz 5Recognizing functionsLinear and nonlinear functionsUnit testPractice

Quizzes

Unit test

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Slope from graph

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Slope from two points

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Slope from equation

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Slope-intercept equation from graph

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Slope-intercept from two points

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Evaluate functions

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Evaluate functions from their graph

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Function rules from equations

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Linear equations word problems: graphs

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Linear equations word problems

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Linear models word problems

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Compare linear functions

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Comparing linear functions word problem

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Graphing linear functions word problems

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Writing linear functions word problems

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**Linear equations and functions**with these 15 questions.About this unit

Linear equations like y = 2x + 7 are called "linear" because they make a straight line when we graph them. These tutorials introduce you to linear relationships, their graphs, and functions.