for q17, rearrange the first inequality to get y as the subject, which should give you y < (x-4) / 2
draw this line (dotted line) on the graph and shade the area for where the y coordinates of each point is less than its (x coordinate - 4)/2
for the second line, draw the dotted line at which x = 3, and shade the area where the x coordinates are less than 3
for the third line, do the same as the first but with this equation
the region r is where all three separate areas overlap