# Unit 3: Linear relationships

## Lesson 3: Representing proportional relationships

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Graphing proportional relationships: unit rateGraphing proportional relationships from a tableGraphing proportional relationships from an equation
Practice
Graphing proportional relationshipsGet 3 of 4 questions to level up!

## Lesson 4: Comparing proportional relationships

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Rates & proportional relationships exampleRates & proportional relationships: gas mileage
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Rates & proportional relationshipsGet 5 of 7 questions to level up!

## Lesson 7: Representations of linear relationships

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Linear & nonlinear functions: missing value

## Lesson 8: Translating to y=mx+b

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Intro to slope-intercept formGraph from slope-intercept equation

## Lesson 9: Slopes don't have to be positive

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Intro to interceptsSlope-intercept equation from slope & pointLinear & nonlinear functions: word problem
Practice
Intercepts from a graphGet 3 of 4 questions to level up!
Slope from graphGet 3 of 4 questions to level up!
Slope-intercept introGet 3 of 4 questions to level up!
Graph from slope-intercept formGet 3 of 4 questions to level up!
Slope-intercept equation from graphGet 3 of 4 questions to level up!

## Lesson 10: Calculating slope

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No videos or articles available in this lesson
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Slope from two pointsGet 3 of 4 questions to level up!

## Lesson 11: Equations of all kinds of lines

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Converting to slope-intercept form

## Extra practice: Slope

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Intro to slopeWorked examples: slope-intercept introGraphing slope-intercept formWriting slope-intercept equationsSlope-intercept form review
Practice
Slope-intercept from two pointsGet 3 of 4 questions to level up!

## Lesson 12: Solutions to linear equations

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Solutions to 2-variable equationsWorked example: solutions to 2-variable equations
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Solutions to 2-variable equationsGet 3 of 4 questions to level up!

## Lesson 13: More solutions to linear equations

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Completing solutions to 2-variable equations
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Complete solutions to 2-variable equationsGet 3 of 4 questions to level up!

## Extra practice: Intercepts

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x-intercept of a lineIntercepts from an equationWorked example: intercepts from an equationIntercepts of lines review (x-intercepts and y-intercepts)
Practice
Intercepts from an equationGet 3 of 4 questions to level up!