a) draw the graph for y = 3/x
use xy = 3 if it's easier for you: plot (1,3) (1.5,2) (3,1) and the negative sides (-1,-3) etc. and draw in the curves.
it's a hyperbola.
the shaded region is where the y value is less that 3/ x value, so basically under the line... I'm drawing a picture in...