Solve Linear Equations

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What is a linear equation?

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How do you solve a linear equation?

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To solve a linear equation, isolate the variable on one side of the equation using inverse operations (addition, subtraction, multiplication, division) until the variable is alone.

Tags

CCSS.7.EE.B.4A

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What does it mean to isolate a variable?

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Isolating a variable means rearranging the equation so that the variable is on one side and all other terms are on the opposite side.

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Tags

CCSS.7.EE.B.4A

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What is the slope-intercept form of a linear equation?

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CCSS.8.EE.B.6

CCSS.8.F.A.3

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Tags

CCSS.8.EE.B.6

CCSS.8.F.A.3

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How do you find the x-intercept of a linear equation?

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What does it mean if two linear equations are parallel?

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Two linear equations are parallel if they have the same slope but different y-intercepts, meaning they will never intersect.

Tags

CCSS.8.EE.C.8A

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What does it mean if two linear equations are perpendicular?

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Two linear equations are perpendicular if the product of their slopes is -1, meaning they intersect at a right angle.