please show the steps

(1) A consumer has utility function U($1,:172) = V1171 + 1/172. (a) In the same graph, draw the indifference curves {($1,332) | U(xl, 332) = 2} and identify the upper contour set {($1,332) | U(:L'1,:L'2) 2 2}. (b) Are his preferences monotone? (0) Are his preferences convex? Is U quasiconcave? Justify your answers formally