Find the line integral with respect to arc length ∫c(8x+5y)ds, where c is the line segment in the xy-plane with endpoints p=(7,0) and q=(0,5). (a) find a vector parametric equation r⃗ (t) for the line segment c so that points p and q correspond to t=0 and t=1, respectively. r⃗ (t)= (b) using the parametrization in part (a), the line integral with respect to arc length is ∫c(8x+5y)ds=∫ba dt with limits of integration a= and b= (c) evaluate the line integral with respect to arc length in part (b). ∫c(8x+5y)ds=