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# Unit 20: Operations and Algebra 229+

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- Equations with variables on both sidesGet 3 of 4 questions to level up!
- Equations with variables on both sides: decimals & fractionsGet 3 of 4 questions to level up!

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- Equations with parenthesesGet 3 of 4 questions to level up!
- Equations with parentheses: decimals & fractionsGet 3 of 4 questions to level up!
- Reasoning with linear equationsGet 3 of 4 questions to level up!

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- Number of solutions to equationsGet 3 of 4 questions to level up!
- Number of solutions to equations challengeGet 3 of 4 questions to level up!

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- Linear equations with unknown coefficientsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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- Compound inequalitiesGet 3 of 4 questions to level up!

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

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- Slope from graphGet 3 of 4 questions to level up!
- Graphing from slopeGet 3 of 4 questions to level up!
- Slope in a tableGet 3 of 4 questions to level up!
- Slope from two pointsGet 3 of 4 questions to level up!

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- Horizontal & vertical linesGet 5 of 7 questions to level up!

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- Intercepts from a graphGet 3 of 4 questions to level up!
- Intercepts from an equationGet 3 of 4 questions to level up!
- Intercepts from a tableGet 3 of 4 questions to level up!

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- Relating linear contexts to graph featuresGet 5 of 7 questions to level up!
- Using slope and intercepts in contextGet 3 of 4 questions to level up!
- Linear equations word problems: tablesGet 3 of 4 questions to level up!
- Linear equations word problems: graphsGet 3 of 4 questions to level up!
- Graphing linear relationships word problemsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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- Slope-intercept introGet 3 of 4 questions to level up!
- Linear equations word problemsGet 3 of 4 questions to level up!

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- Slope-intercept equation from graphGet 3 of 4 questions to level up!
- Slope-intercept from two pointsGet 3 of 4 questions to level up!
- Writing linear equations word problemsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

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- Point-slope formGet 3 of 4 questions to level up!

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- Graph from linear standard formGet 3 of 4 questions to level up!
- Convert linear equations to standard formGet 3 of 4 questions to level up!

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- Slope from equationGet 3 of 4 questions to level up!
- Linear equations in any formGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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- Solutions of systems of equationsGet 3 of 4 questions to level up!
- Systems of equations with graphingGet 3 of 4 questions to level up!
- Creating systems in contextGet 3 of 4 questions to level up!
- Interpret points relative to a systemGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

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- Reasoning with systems of equationsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 160 Mastery points

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- Combining equationsGet 3 of 4 questions to level up!
- Elimination strategiesGet 3 of 4 questions to level up!
- Systems of equations with eliminationGet 3 of 4 questions to level up!
- Systems of equations with elimination challengeGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

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- Number of solutions to a system of equations graphicallyGet 3 of 4 questions to level up!
- Number of solutions to a system of equations algebraicallyGet 3 of 4 questions to level up!

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- Age word problemsGet 3 of 4 questions to level up!
- Systems of equations word problemsGet 3 of 4 questions to level up!
- Systems of equations word problems (with zero and infinite solutions)Get 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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- Solutions of inequalities: algebraicGet 3 of 4 questions to level up!
- Solutions of inequalities: graphicalGet 3 of 4 questions to level up!
- Solutions of systems of inequalitiesGet 3 of 4 questions to level up!

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### Practice

- Graphs of inequalitiesGet 3 of 4 questions to level up!
- Two-variable inequalities from their graphsGet 3 of 4 questions to level up!
- Systems of inequalities graphsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

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- Two-variable inequalities word problemsGet 3 of 4 questions to level up!
- Systems of inequalities word problemsGet 3 of 4 questions to level up!
- Analyzing structure with linear inequalitiesGet 5 of 6 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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- Evaluate functionsGet 3 of 4 questions to level up!
- Evaluate functions from their graphGet 3 of 4 questions to level up!
- Evaluate function expressionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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- Function inputs & outputs: equationGet 3 of 4 questions to level up!
- Function inputs & outputs: graphGet 3 of 4 questions to level up!

### Practice

- Function rules from equationsGet 3 of 4 questions to level up!

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- Function notation word problemsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 320 Mastery points

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- Identifying values in the domainGet 3 of 4 questions to level up!
- Determine the domain of functionsGet 3 of 4 questions to level up!
- Function domain word problemsGet 3 of 4 questions to level up!

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- Recognize functions from graphsGet 3 of 4 questions to level up!
- Recognize functions from tablesGet 3 of 4 questions to level up!

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- Relative maxima and minimaGet 3 of 4 questions to level up!
- Absolute maxima and minimaGet 3 of 4 questions to level up!

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- Positive and negative intervalsGet 3 of 4 questions to level up!
- Increasing and decreasing intervalsGet 3 of 4 questions to level up!

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- Evaluate inverse functionsGet 3 of 4 questions to level up!
- Finding inverses of linear functionsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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- Extend arithmetic sequencesGet 3 of 4 questions to level up!
- Use arithmetic sequence formulasGet 5 of 7 questions to level up!

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- Recursive formulas for arithmetic sequencesGet 3 of 4 questions to level up!
- Explicit formulas for arithmetic sequencesGet 3 of 4 questions to level up!
- Converting recursive & explicit forms of arithmetic sequencesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

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- Extend geometric sequencesGet 3 of 4 questions to level up!
- Extend geometric sequences: negatives & fractionsGet 3 of 4 questions to level up!
- Use geometric sequence formulasGet 3 of 4 questions to level up!

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### Practice

- Recursive formulas for geometric sequencesGet 3 of 4 questions to level up!
- Explicit formulas for geometric sequencesGet 3 of 4 questions to level up!
- Converting recursive & explicit forms of geometric sequencesGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 480 Mastery points

### Practice

- Sequences word problemsGet 3 of 4 questions to level up!

### Practice

- Evaluate sequences in recursive formGet 3 of 4 questions to level up!
- Sequences and domainGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

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- Exponential vs. linear growthGet 3 of 4 questions to level up!
- Exponential vs. linear modelsGet 3 of 4 questions to level up!

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- Exponential expressions word problems (numerical)Get 3 of 4 questions to level up!
- Exponential expressions word problems (algebraic)Get 3 of 4 questions to level up!
- Interpret exponential expressions word problemsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 400 Mastery points

### Practice

- Graphs of exponential growthGet 3 of 4 questions to level up!

### Practice

- Exponential vs. linear growth over timeGet 3 of 4 questions to level up!

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- Exponential growth vs. decayGet 3 of 4 questions to level up!
- Graphing exponential growth & decayGet 3 of 4 questions to level up!
- Writing functions with exponential decayGet 3 of 4 questions to level up!

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- Exponential functions from tables & graphsGet 3 of 4 questions to level up!
- Connecting exponential graphs with contextsGet 3 of 4 questions to level up!

Level up on the above skills and collect up to 240 Mastery points

Level up on all the skills in this unit and collect up to 10900 Mastery points!