## 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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Favorites (15)

Resources (22)

Reflections (1)

### 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)

### 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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Favorites (3)

Resources (19)

Reflections (1)

### What's In an Intersection?

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

Big Idea:

#### The "closeness" of one graph to another matches the accuracy of a guess and a check.

Standards:

Favorites (2)

Resources (16)

Reflections (1)

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

Big Idea:

#### 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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Favorites (3)

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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Favorites (1)

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

Big Idea:

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

Standards:

Favorites (6)

Resources (22)

Reflections (1)

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

Big Idea:

#### Finding the intercepts of a function can be a useful way to determine some coordinates that satisfy the equation of that function.

Standards:

Favorites (6)

Resources (19)

Reflections (1)

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

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Favorites (3)

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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Favorites (2)

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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Favorites (3)

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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Resources (12)

### Explore changing coefficients

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

Big Idea:

#### Use the graphing calculator to explore how changing a and c change a quadratic function.

Standards:

Favorites (2)

Resources (15)

Reflections (1)

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

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Standards:

Favorites (18)

Resources (12)

Reflections (1)
Common Core Math