questions below:

Choose the graph that matches the vector equation. r(t) = - ti + tj + tk, Osts1 Choose the correct answer below. O A. O B. O c. OD. AZ ( - 1, 1, 1) I(1, 1, - 1) X2 Find the line integral of f(x,y) = y e x along the curve r(t) = 3t i 4t j, - 1 S t S 0. <:> The integral of f is E. (Type an exact answer.) 3 2 E Find the center of mass of a thin wire lying along the curve r(t) = 4ti + 4tj + E t k, 0 s t s 2 if the density is 8 = 31/ 32 + t. <: exact answers using radicals as needed.>