Watch Video on Slope Intercept Form – Algebra Help
Saturday, February 27th, 2010
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
http://www.excel13.com and http://www.aviber.com
http://www.excel13.com and http://www.aviber.com
Lecture Series on Database Management System by Dr. S. Srinath, IIIT Bangalore. For more details on NPTEL visit http://nptel.iitm.ac.in
Access full lesson containing this video at: http://www.yourteacher.com/algebra1/solvinginequalities.php Students learn that when solving an inequality, such as –3x is less than 12, the goal is the same as when solving an equation: to get the variable by itself on one side. Note that when multiplying or dividing both sides of an inequality by a negative number, the direction of the inequality sign must be switched. For example, to solve –3x is less than 12, divide both sides by –3, to get x is greater than -4. And when graphing an inequality on a number line, less than or greater than means an open dot, and less than or equal to or greater than or equal to means a closed dot.
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