Problem 1 (part 1 of 2) Goal: Find the mass of a thin wire (depicted below) in the shape of the curve x = 4 - y in the xy plane where x 2 0, y 2 0, whose density is 8 (x, y) = y. Part (a) Parameterize the curve, call it " ( t ) = ( x ( t ) , y ( t ) > . 2.0 x (t) = 15 y ( t ) = Density 10 0.5 0.0- WJ N- Part (b) Evaluate 8 (x, y ) along C. X 8 (7(1)) = Part (c) Compute |7'(t)|. 17()1 =