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**6-1 Solving Systems by Graphing**

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System of Linear Equations: two or more linear equations Solution of a System of Linear Equations: any ordered pair that makes all of the equations in a system true

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**Problem1: Solving a System of Equations by Graphing**

What is the solution of the system? Use a graph. 𝑦=𝑥+2 𝑦=3𝑥−2

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**Problem 2: Writing a System of Equations**

Scientist studied the weights of two alligators over a period of 12 months. The initial weight and growth rate of each alligator are shown below. After how many months did the alligators weigh the same amount

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A system of equations that has at least on solution is consistent A consistent system can be either independent or dependent Independent: has exactly one solution Dependent: has infinitely many solutions Inconsistent: a system of equations that have NO SOLUTION

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**Problem 3: Systems with Infinitely Many Solutions or No Solution**

What is the solution of each system? Use a graph. 2𝑦−𝑥=2 𝑦= 1 2 𝑥+1

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**What is the solution of each system? Use a graph. 𝑦=2𝑥+2 𝑦=2𝑥−1 **

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