Lines

  1. \rhd Finding the slope of a line (6:42)  Find the slope of a line given two points, namely:
    • [Example 1]  (1,2) and (5,4)
    • [Example 2]  (1.5,2.3) and (5,-1.7)
  2.   \rhd Find the equation of a line using the point-slope form (5:33) Find the equation of a line using the point-slope form given two points:
    • [Example 1]  (-3,5) and (2,8)
  3.   \rhd Graphing a line using a point and the slope (6:24) Graph a line given a point and the slope, namely:
    • [Example 1]   (1,2) and slope 3
    • [Example 2] (-2,1) and slope -\dfrac{2}{3}
  4.   \rhd Graphing a line using the x- and y-intercepts (8:23)
    • [Example 1]  Graph 2x+4y=12
    • [Example 2]  Graph 3x-2y=8