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Algebra

Algebra. 4.2 Part 2 Horizontal and Vertical Lines. Equation of a Horizontal Line. y = b. y = b. where the line crosses the Y axis. For example: if the lines crosses at the point (0,5) then the equation of the horizontal line is y = 5. Equation of a Vertical Line. x = a. x = a.

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Algebra

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  1. Algebra 4.2 Part 2 Horizontal and Vertical Lines

  2. Equation of a Horizontal Line y = b . y = b where the line crosses the Y axis For example: if the lines crosses at the point (0,5) then the equation of the horizontal line is y = 5

  3. Equation of a Vertical Line x = a x = a . where the line crosses the x axis For example: if the lines crosses at the point (-3,0) then the equation of the vertical line is x = -3

  4. Graphing Guidelines • Follow the graphing guidelines: • Graph paper • Ruler • No more then 2 lines per coordinate plane • Label y-intercept • Show plotted points clearly • Axis lines have 2 arrows • Graphed lines have 2 arrows and are long • Label the line with the equation

  5. HOMEWORK • pg. 215 # 36 – 55 It says to graph using a table, you may want to use slope-intercept form to go quicker.

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