Question 16 10 Points Find the area between the curves f(X) = 1 -2X and g(x) = - X -1 over the interval [-4, - 1]. A 13.5 units B 21 units2 C 27 units2 D 28.5 units2Question 17 10 Points If A denotes a region bounded above by the graph of a continuous function f(X), below by the x-axis, and on the left and right by the lines *=@ and *= b, respectively, then which of the following integrals gives the mass of the lamina with density P? [f (x) ]2 A m = pJ 2 dx b B m = p xf(x) dx Cm= pf f(x ) dx D m = p [f(x)12 dx