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Think, Think, Think. Algebra I Seminar

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How Much Do you Remember? The Coordinate Plane X-axis, Y-axis Slope Y-intercept Ordered Pairs Slope Intercept Form of a line Plotting Points on a coordinate plane Graphing a line By the end of this class, you will be able to do all these things listed above!!

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Recap Algebra I Seminar Coordinate Plane I III II IV

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Recap Algebra I Seminar Coordinate Plane Y-axis: Vertical (up and down) X-axis: Horizontal (left and right) Number lines (positive and negative) Positive: Up and Right Negative: Down and Left

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Recap Algebra I Seminar Coordinate Points or Ordered Pairs

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Recap Algebra I Seminar Plotting Coordinate Points

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Recap Algebra I Seminar Slope Symbol: m Equation:

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Recap Algebra I Seminar Slope Equation: Find the slope between these two points: (2,3) and (4,5)

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Slope on the Coordinate Plane (2,3) and (4,5)

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Recap Algebra I Seminar Slope Intercept Form Equation of a Line in Slope Intercept Form: y = mx+b M = slope b = y-intercept (where the line crosses the y-axis)

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Algebra I Seminar Graphing a Line in Slope Intercept Form y = mx + b y = 2x + 1 b = 1: y-intercept m = 2: slope

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Recap Algebra I Seminar Now You Do It! Get out a piece of paper Put the following equations in Slope Intercept Form Graph 1 of the equations Y=3x-4 2+y-x=0 2y=2x+4 X=2y

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Do Now Find the slope of the line passing through the given points. 1)( 3, – 2) and (4, 5) 2)(2, – 7) and (– 1, 4)

Do Now Find the slope of the line passing through the given points. 1)( 3, – 2) and (4, 5) 2)(2, – 7) and (– 1, 4)

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