8.EE.C.8a

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- 8.EE.C.8aUnderstand that solutions to a system of two linear equations in two variables correspond to points of intersection of their graphs, because points of intersection satisfy both equations simultaneously.
- 8.EE.C.8bSolve systems of two linear equations in two variables algebraically, and estimate solutions by graphing the equations. Solve simple cases by inspection. For example, 3x + 2y = 5 and 3x + 2y = 6 have no solution because 3x + 2y cannot simultaneously be 5 and 6.
- 8.EE.C.8cSolve real-world and mathematical problems leading to two linear equations in two variables. For example, given coordinates for two pairs of points, determine whether the line through the first pair of points intersects the line through the second pair.

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## 8.EE.C.8a

## Understand that solutions to a system of two linear equations in two variables correspond to points of intersection of their graphs, because points of intersection satisfy both equations simultaneously.

41 Lesson(s)

### Solving Linear Systems of Equations with Elimination (Day 1 of 3)

Algebra I »
Unit: Systems of Linear Equations

Algebra I »
Unit: Systems of Linear Equations

Big Idea:

#### Students will identify zero pair coefficients to solve systems of equations by adding.

Standards:

Favorites
(71)

Resources
(14)

Reflections
(1)

### Stacking Cups: Systems of Equations Real World Application

Algebra I »
Unit: Systems of Linear Equations

Algebra I »
Unit: Systems of Linear Equations

### Pennies Lab Introduction to Systems of Equations Day 1 of 2

8th Grade Math »
Unit: Solving Simultaneous Linear Equations

8th Grade Math »
Unit: Solving Simultaneous Linear Equations

### Systems Assessment 2: Mastery Test

8th Grade Math »
Unit: Systems of Linear Equations

8th Grade Math »
Unit: Systems of Linear Equations

### Elimination 1 - add or subtract only

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Elimination 4 - multiply one equation only

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Going Mobile?

8th Grade Math »
Unit: Systems of Linear Equations

8th Grade Math »
Unit: Systems of Linear Equations

### Choose the best method to solve systems of equations

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Mixed Review of Systems of Equations

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Real-life Systems 1

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Real-life Systems 3 - Easy Price

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Real-life Systems 5 - Price-Sum Plus One Other

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

### Graphing Linear Systems of Equations (Day 1 of 2)

Algebra I »
Unit: Systems of Linear Equations

Algebra I »
Unit: Systems of Linear Equations

Big Idea:

#### Students will discover that intersecting lines on a coordinate plane share a common solution, forming a system of equation.

Standards:

Favorites
(48)

Resources
(25)

Reflections
(1)

### Solving Linear Systems of Equations with Elimination (Day 3 of 3)

Algebra I »
Unit: Systems of Linear Equations

Algebra I »
Unit: Systems of Linear Equations

Big Idea:

#### Students will use multiplication to create zero pair coefficients. Students will use graphing calculators to verify the solution to a system of equations.

Standards:

Favorites
(20)

Resources
(18)

Reflections
(1)

### SUB! How can we use the properties of algebra to figure out the intersection of two lines WITHOUT graphing? (Day 2 of 3)

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

8th Grade Math »
Unit: SYSTEMS OF LINEAR EQUATIONS

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