Understand that the graph of an equation in two variables is the set of all its solutions plotted in the coordinate plane, often forming a curve (which could be a line).

50 Lesson(s)

Solving Two Variable Inequalities

Algebra I » Unit: Extending Equations
Algebra I » Unit: Extending Equations
Amherst, NY
Environment: Suburban

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Ellipses

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

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Favorites (5)

Resources (19)

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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Favorites (2)

Resources (16)

Reflections (1)

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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Resources (19)

Reflections (1)

An Intersection Point, and What Happens Around It

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

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Often the truest solution to a problem is that "it depends". Substitution is an efficient method for finding the precise intersection of two lines; a graph makes it clear what happens on either side of that point.

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Resources (14)

Algebra I » Unit: The Number Line Project
Worcester, MA
Environment: Urban

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Favorites (42)

Resources (25)

Reflections (2)

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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Resources (17)

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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Resources (22)

Reflections (1)

Graphing Linear Functions Using Intercepts

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

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Resources (19)

Reflections (1)

Using Linear Functions for Modeling

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

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Resources (16)

Reflections (1)

From Graphing to Substitution

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

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Resources (13)

Where Do the Lines Cross?

Algebra I » Unit: Systems of Equations and Inequalities
Algebra I » Unit: Systems of Equations and Inequalities
Boston, MA
Environment: Urban

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Resources (16)

Reflections (1)

Axis of symmetry and vertex algebraically

8th Grade Math » Unit: QUADRATIC FUNCTIONS
8th Grade Math » Unit: QUADRATIC FUNCTIONS
New York, NY
Environment: Urban

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Explore changing coefficients

8th Grade Math » Unit: QUADRATIC FUNCTIONS
8th Grade Math » Unit: QUADRATIC FUNCTIONS
New York, NY
Environment: Urban

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Resources (15)

Reflections (1)

Introduction to a System of Linear Equations

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

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Resources (12)

Reflections (1)
Common Core Math