Point-slope form: yy1=m(xx1)y - y_1 = m (x - x_1)

Intros
Lessons
  1. What is Point-Slope form?
  2. Slope intercept form VS. General form VS. Slope-point form
Examples
Lessons
  1. Determine the slope-point form of the following line equations:
    Slope-Point form: y - y_1 = m (x - x_1)
  2. Given the info of slope and two other points on the graph, find the missing variable.
    1. Given the slope m=4/5m = 4/5 and two points on a line (3,4)(-3, -4) and (2,a)(2, a). Find the value of aa.
    2. Given the slope m=4/7m = -4/7 and two points on a line (3,4)(3, 4) and (a,a1)(a, a-1). Find the value of aa.
  3. Given a point and the slope, write the equation in slope-point form and sketch the graph.
    1. (3,2),m=2/3(3, 2), m = 2/3
    2. (5,7),m=0(5, -7), m = 0
    3. (3,8),m=undefined(-3, 8), m = undefined