Will someone help me with this exercise?
If $f:\mathbb{R}^2\to \mathbb{R}$ is a continuous function and $$ \iint_D f(x,y)dxdy =\int_{-2}^0 \left[ \int_{x^2}^{6+x}f(x,y)dy\right]dx +\int_0^1\left[ \int_{x^2}^{6-5x}f(x,y)dy\right]dx.$$
Make a graphic sketch of the $D$ set.
Reverse the order of integration.
