Question 827466
We could say that
{{{x}}}= calories per day, and
{{{y}}}= grams of fat per day.
With the variables so defined our system of inequalities is
{{{system(green(1600)<=x<=green(2000),blue(45)<=y<=blue(55))}}}
Then the graph would be the boring red rectangle below, which should be shaded.
{{{drawing(300,300,-250,2250,-20,80,
green(line(1600,-20,1600,80)),green(line(2000,-20,2000,80)),
blue(line(-250,45,2250,45)),blue(line(-250,55,2250,55)),
grid(0),
red(line(1600,45,2000,45)),red(line(1600,55,2000,55)),
red(line(1600,45,1600,55)),red(line(2000,45,2000,55))
)}}}
 
On the other hand, if we said that
{{{x}}}= grams of fat per day, and
{{{y}}}= calories per day , the graph would look flipped, as shown below.
{{{drawing(300,300,-20,80,-250,2250,
grid(0),red(rectangle(45,1600,55,2000))
)}}}