R^2/Subsets/Sketch/3/Exercise

Sketch the following subsets of ${}\mathbb {R} ^{2}$.

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2. ${}{\left\{(x,y)\mid x+y\leq 3\right\}}$,
3. ${}{\left\{(x,y)\mid (x+y)^{2}\geq 4\right\}}$,
4. ${}{\left\{(x,y)\mid \vert {x+2}\vert \geq 5{\text{ and }}\vert {y-2}\vert \leq 3\right\}}$,
5. ${}{\left\{(x,y)\mid \vert {x}\vert =0{\text{ and }}\vert {y^{4}-2y^{3}+7y-5}\vert \geq -1\right\}}$,
6. ${}{\left\{(x,y)\mid -1\leq x\leq 3{\text{ and }}0\leq y\leq x^{3}\right\}}$.

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