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$�� 8. �) {y=3, x^2-6y+8=0}; �) {y>=3, y-x+1=0};�) {x=2, y^2-8y+15=0}; �) {y=0};�) {x>=2,...$

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8. �) {y=3, x^2-6y+8=0}; �) {y > =3, y-x+1=0};

�) {x=2, y^2-8y+15=0}; �) {y < =5, y-x+1 > =0};

�) {x > =2, 3 < =y < =5}; �) {x > =2, 3 < =y < =5, 3y+4x < =22}.

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