Question 65560
You can graph these to make lines. Then, the lines give you your answers:
Represent by slope - intercept form: {{{y = mx + b}}}
{{{3x - y <= 6}}}
{{{-y <= 6 - 3x}}}
{{{y >= 3x - 6}}}
Graph: {{{3x - 6}}}
All points on the line or above the line is a possible solution.
Greater than means above the line.
{{{graph(300,300,-10,10,-10,10,3x - 6)}}}
The rest are simple.
{{{x >= 1}}}
Graph: x = 1
All points on or right of the line are solutions.
{{{y <= 3}}}
Graph: y = 3
All points on or under the line is a solution.