1.For the functions f(x, y)=2x-3 and g(x, y)=max(x, y),

a.draw the level curves at f(x, y)= 1,2,3 and g(x, y)=1,2,3

b.For each function, highlight and clearly label superlevel and sublevel sets for the function when the value of the function is 1.

c.State whether each function is quasiconcave, quasiconvex, both or neither. Explain.