Question 16054
This is the slope-intecept form of the equation of a straight line.  The value of b is the y-intercept, which is the point where the graph crosses the y-axis.  The number m is the slope of the line, where slope m = rise over run.  It gives the steepness of the line.  And of course, x and y are variables which change within the graph from one point to another.  


For example y = 3x +2, the y-intercept is 2 and the slope is 3 or 3/1 which means that the rise is 3 and the run is 1.  So to graph this line, start with the y-intercept of 2 (that means go UP two on the y-axis and put the first point).  Then from this point, go UP three more units, then go to the right one unit, and put the second point there.  Draw a line between these two points and it should look like this:

{{{graph (300, 300, -10, 10, -10, 10, 3x+2)}}}


R^2 at SCC