## Explain why the x-coordinates of the points where the graphs of the equations y = f(x) and y = g(x) intersect are the solutions of the equation f(x) = g(x); find the solutions approximately, e.g., using technology to graph the functions, make tables of values, or find successive approximations. Include cases where f(x) and/or g(x) are linear, polynomial, rational, absolute value, exponential, and logarithmic functions.*

65 Lesson(s)

Algebra II » Unit: Polynomials
Caldwell, ID
Environment: Rural

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### Solving Systems by Graphing

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Review Workshop: Polynomial Functions and Expressions

Algebra II » Unit: Polynomial Functions and Expressions
Algebra II » Unit: Polynomial Functions and Expressions
Ipswich, MA
Environment: Suburban

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### Quiz and Intro to Graphs of Polynomials

Algebra II » Unit: Polynomial Theorems and Graphs
Algebra II » Unit: Polynomial Theorems and Graphs
Ipswich, MA
Environment: Suburban

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### Three Ways to Solve a Problem

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### What's In an Intersection?

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Mastery Session: MP1, 5.1, and 5.2

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Another Rational Approach to Solving: Graphing

12th Grade Math » Unit: Rational Functions and Equations
12th Grade Math » Unit: Rational Functions and Equations
Phoenix, AZ
Environment: Urban

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### The Best of 2 Cell Phone Plans

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Rogers, AR
Environment: Rural

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### Non-Linear Systems of Equations

12th Grade Math » Unit: Conic Sections
12th Grade Math » Unit: Conic Sections
Phoenix, AZ
Environment: Urban

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### Creating and Interpreting Equations to Solve Systems

Algebra I » Unit: Making Informed Decisions with Systems of Equations
Algebra I » Unit: Making Informed Decisions with Systems of Equations
Salem, MA
Environment: Urban

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#### Students create systems of equations and attempt to solve them as an introduction to the relevance of solving systems of equations and inequalities!

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Algebra I » Unit: Systems of Equations
Rogers, AR
Environment: Rural

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### From Graphing to Substitution

Algebra I » Unit: Systems of Equations
Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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#### It’s amazing to get to the point where students truly understand how useful and beautiful algebra can be. Transitioning from graphing systems to solving by substitution is an opportunity to get kids there.

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Algebra I » Unit: Systems of Equations
Worcester, MA
Environment: Urban

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### Solving Equations Involving Exponents

Algebra I » Unit: Exponential Functions
Algebra I » Unit: Exponential Functions
Amherst, NY
Environment: Suburban

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Common Core Math