(1 point) Find the line integral with respect to arc length (5x+9y)ds, where C is the line segment in the xy-plane with endpoints P = (2, 0) and Q = (0, 6). (a) Find a vector parametric equation ŕ (t) for the line segment C so that points P and Q correspond to t = 0 and t = 1, respectively. F(t) = <2-21,6t> (b) Using the parametrization in part (a), the line integral with respect to arc length is b ((5x + y)ds = [["\ -20-20t+54(6t) with limits of integration a = 0 and b = 1 (c) Evaluate the line integral with respect to arc length in part (b). L(5x (5x+9y)ds = 132 dt