Answer:
A.
Explanation:
Just put the equation 3x+4y≥20 into y=mx+b form. Subtract 3x from both sides so you get 4y ≥ -3x+20
then divide everything by 4 to isolate the y.
You would get y ≥ -3/4+ 5. Then just use the slope and y-intercept to graph.
If ≥ symbol is used, shade above the line.