Question 671915
Put it into the y=mx+b format
3x - 4y > 12
-4y > -3x + 12
y < {{{3/4}}}x - 3
...
Find and plot the intercepts.
Draw a dashed line connecting them.  Dashed so as to NOT include points on the line.  
Shade the area below the line.
...
y intercept is -3
Plot (0, -3)
...
x intercept
0 = {{{3/4}}}x - 3
3 = {{{3/4}}}x
{{{(4/3)(3) = (3/4)(4/3)x}}}
4 = x
Plot (4, 0)
...
{{{graph(300,200,-10,10,-10,10,y<(3/4)x-3)}}}
.....................
Delighted to help.
-Reading Boosters
Website: www.MyHomeworkAnswers.com 
Wanting for others what we want for ourselves.