Find the area enclosed by $y=x^2-2x$ and $y=x.($Graph; shade the enclosed area; find limits of

integration; integrate and evaluate.$)$

Set up the integral $($or integrals$)$ to find the area of the triangular region bounded by the curves

$y=x+1,y=\frac{1}{3}x+1,$ and $y=2.$ Do not evaluate.Set up the integral $($or integrals$)$ to find the area of the triangular region bounded by the curves

y $=$ x $+1,$ y $=$ x$+1,$ and y $=2.$ Do not evaluate.