4.2Graphing Horizontal and vertical lines.doc - bmass

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					Algebra : Graphing Horizontal and Vertical Lines

     I.      Objectives
             A. Graphing Horizontal Lines
             B. Graphing Vertical Lines

     II.     Discuss some Key Terms
             A. Cartesian Plane
             B. Axes
                       i.       Horizontal (x-axis)
                       ii.      Vertical (y-axis)

             C. Points
                     i.            Ordered Pair
                     ii.           (x,y)
             D. Quadrants

    III.   Warmup
Give the coordinates of the following points.

1.   C_______
                                                                                                 C
2. F_______                                             E


3. I_______

4. E_______                                                     H                            G
                                                      -10
5. The point in quadrant IV
   Closest to the x-axis.________                                                                        J

                                                                    D                        F
                                                            I




     IV.     Graph the following set of points
             A. (2,1) (2, 5), (2, -3), (2, 0)



             B. (-3, 0), (-3, -3), (-3, 2), (-3, 5)


             C.   (1, 1), (1, 3), (1, -4)
             D.   Do you find something in common with Examples A-C?
             E.   If you had to call these Horizontal Lines or Vertical Lines, which one would you choose?
             F.   The equation for Example A:
             G.   The equation for Example B:
             H.   The equation for Example C:
V.      This was only the one type of line, what is the other type of line?
        A. Could you give me a set of points to try and get a picture of this other type of line?


        B. How would you write an equation for this one?



VI.     If given the point (2, 3), could you write an equation of a horizontal line that passes through
        that point?



VII.    If given the point (-1, 0), could you write an equation of a vertical line that passes through that
        point?



VIII.   Given the equation, x = 2,
        A. is the point (2,3 ) on that line?

        B. is the point (3, 2) on that line?

				
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posted:12/7/2013
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