Finding the equation of a line given 2 points

Finding the equation of a line given 2 points
  • Currently 2.0/5 Stars.
652 views - 00:04:57
Part of video series Writing Equations for Lines
Taught by Naomi1431
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Meets these NCTM Standards:


This video is on finding the equation of a line given 2 points. Both the slope formula and point-slope form are used in the process. Also, there are fractions in this one. :)
  • How do you find the equation of a line given two points using the slope formula?
  • What is the slope formula?
  • What is the equation for the line through the points (-5, -4) and (-2, -9)?
  • What are x1, y1, x2, and y2 in the slope formula?
  • How do you find the slope between two points?
  • What is point-slope form and how do you use it?
  • How can you change an equation from point-slope form into slope-intercept form?
This lesson is a great introduction to finding slope between two points and then using point-slope form to find the equation of the line between the points. All steps involved with finding slope and plugging the points and the slope into the point-slope equation are shown and explained.
  • Currently 4.0/5 Stars.
Reviewed by MathVids Staff on June 12, 2010.
such a sleepy-sounding voice...
  • Currently 1.0/5 Stars.
Reviewed by jacqui on February 01, 2011.
 
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