Graph a Line From 2 Points | Easy Math Tips for Slope-Intercept Form
In this video, we graph 2 points, connect them with a line, and find the equation in slope-intercept form (y=mx+b). This math trick makes graphing lines and equations way easier! If slope and y-intercept ever confuse you, this example will help it all click.
We will demonstrate how to plot points on a graph and write the equation of the line that passes through them in slope-intercept form. Starting with the points (-6, -4) and (6, 2), we'll show you how to graph the line and determine the slope and y-intercept. We'll cover the steps to calculate the slope using both the point formula and the triangle method, and how to use these values to form the equation y = mx + b. Perfect for students and math enthusiasts looking to enhance their graphing skills!
Slope-Intercept form is y=mx+b. We want to find the values for "m" and "b".
Graph the two points that are in (x,y) form. Then find the slope by counting squares starting with the point on the left to find the rise over run (or you can use the numbers from the coordinates). The value for the rise over run is the slope which will replace the "m". The part of the line that crosses the y-axis is the y-intercept, which is the value that will replace the "b".
0:00 Plotting the points
0:07 Drawing the line
0:10 Writing slope-intercept form (y=mx+b)
0:16 Finding slope (rise/run)
0:27 Using the slope formula or counting squares
0:40 Reducing slope to simplest form
0:50 Writing the final equation
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