Question 394968
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Hi
Note: the standard slope-intercept form for an equation of a line y = mx + b  
where m is the slope and b the y-intercept.  
isolating y on one side of the equality by performing allowable operations correctly
For ex:  2y -4x < 4  
           y < 2x + 2  |Line: y = 2x + 2, slope m = 2/1  y intercept Pt(0,2)
ONe can graph the line and shade below it: (y < 2x+2) to illustrate 
the graph of the Inequality
*[invoke plot_any_inequality "y < 2x+2", -10, 10, -8, 12, 300, 300]
As to systems of Inequalities, the shaded area they have in common, represents
the solution for the Inquality
For ex. system of Inequalities
 y < 2x + 2  Green line
 y > 2x - 2  Blue line
Solution would be shaded area below green line and above blue line
Solution would be the shaded area between the two lines and not including the lines 
{{{drawing(300,300, -6, 6, -6, 6, grid(1),
graph( 300, 300, -6, 6, -6, 6,0,2x+2,2x-2))}}}