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**Writing Linear Equation in Standard Form**

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**Section 5.4 – Standard Form of a Linear Equation**

The Standard Form of a linear equation has both variables on the one side of the equal sign and where A, B, and C are real numbers Ax+By=C First, how can we graph a linear equation that is in Slope-Intercept? Second, how do we graph for one in Standard Form?

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**Vertical and Horizontal Lines**

Vertical lines – have the equation x = c Horizontal lines – have the equation y= c y x 5 -5 y x 5 -5 x= -3 y= 4 x =4 y= -2

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**Write two equation equivalent**

What does it mean to be equivalent? 𝑥+4𝑦=3 How can we make two equation to be equivalent?

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**Write an equation in Standard Form of the line shown**

What do we know? What do we need to solve for? 2,2 4,−2

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**Complete an equation in standard form**

2,0 Ax+4y=6

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**Homework Assignment Section 5.4 pg. 314**

#1-3,5-9 (ODD) 11-21(ODD), (ODD) 31-35(ODD)

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**5.5 Write Equation of Parallel and Perpendicular Lines**

What does it mean to be parallel? What does it mean to be perpendicular? Lets figure it out Get into groups of groups of 4 We will be working on the Perpendicular Lines Investigation Worksheet

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**Parallel lines lines that are on the same plane and do not intersect.**

Two lines are parallel if and only if they have the same slope.

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**Perpendicular Lines lines that intersect to form a right angle.**

Two lines are perpendicular if and only if their slopes are negative reciprocals of each other. The product of two slopes is equal to -1.

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Homework Due Section 5.5 pg. 322 #3-11(ODD), 18-26(EVEN)

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