Homework: Section.. Question 7, 16.1.13 > Find the line integral of f(x,y,z) = x + y + z over the straight-line segment from (3,4, 1) to (2, 1, - 1). .. . . . C (x+ y+ z) ds = (Type an exact answer, using radicals as needed.)Homework: Section.. Question 8, 16.1.15 > Integrate f(x,y,z) = x + vy - z over the path from (0,0,0) to (3,9,3) given by C, : r(t) =ti + t ), Osts3 C2: r(t) = 3i + 9j + tk, Osts3. ( x + Vy- z3) ds = C (Type an exact answer.)