Watch Video on Slope Intercept Form – Algebra Help

admin — Sat, 27 Feb 2010 05:33:20 +0000

Access full lesson containing this video at: http://www.yourteacher.com/algebra1/slopeinterceptform.php Students learn to use slope-intercept form to graph a line. Slope-intercept form is y = mx + b form, where m represents the slope, and b represents the y-intercept. So if the equation of a line is y = 3/4 x — 2, then the line is written in y = mx + b form, with m = 3/4 and b = -2. To graph the line, start with the y-intercept, or b, of –2. From there, take the slope, or m, of 3/4, plot a second point, and graph the line.

Duration : 0:2:4

[youtube WQyvskZSCJg]

Watch Video on The Intercept Method – Algebra Help

admin — Sun, 21 Feb 2010 04:32:20 +0000

Access full lesson containing this video at: http://www.yourteacher.com/algebra1/interceptmethod.php Students learn to graph a given linear equation using the intercept method. The x-intercept is the point on the graph where the line crosses the x-axis, so the x-intercept will always have a y-coordinate of 0, and the y-intercept is the point on the graph where the line crosses the y-axis, so the y-intercept will always have an x-coordinate of 0. So to graph x + 2y = 6 using the intercept method, substitute a 0 in for y to find the x-intercept, to get x + 2(0) = 6, or x = 6. So the x-intercept is (6, 0). And substitute a 0 in for x to find the y-intercept, to get (0) + 2x = 6, or x = 3. So the y-intercept is (0, 3). Next, plot the intercepts, (6, 0) and (0, 3), and connect these points with a line.

Duration : 0:2:37

[youtube 5avYfw7DRo8]

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Watch Video on Slope Intercept Form – Algebra Help

Watch Video on The Intercept Method – Algebra Help