ONLY D PLEASE

4. For each function f below. sketch the level curves f (:12, y) = c for the given values of c. For each f. draw the level curves on the same graph and label each curve clearly with the appropriate value of (3. (Use a different graph for each f though!) (a) My) = 43321,: c = 1,2. [b] f(:1r:y) = 3:21;: c = 1,1. [c] f{:1'.', ,1) = 23:2 + 31,52; (: = 6,12. (d) m = m c: 6 " [e] f(:1r:e;) = 3,3 :1r:2 3:1? = 0,3 (1] My): Mara}