Question 68189
Graph the inequality
4x + y is greater than or equal to 4
{{{4x+y>=4}}}
{{{4x-4x+y>=-4x+4}}}
{{{y>=-4x+4}}}
Plot points the way you would an equality.
Let x=0 and solve for y:
{{{y=-4(0)+4}}}
{{{y=0+4}}}
{{{y=4}}} Plot (0,4)
Let x=1 and solve for y:
{{{y=-4(1)+4}}}
{{{y=-4+4}}}
{{{y=0}}}  Plot (1,0)
Because the inequality contains =, connect the two points with a solid line like this:
{{{graph(300,200,-10,10,-10,10,-4x+4)}}}
I don't have the capability of shading this graph for you, but you would shade above the line because y is greater than the rest of the graph.
Happy Calculating!!!