17.71 Use Problems
Condition: Build on the plane area of solutions of the system of inequalities. \ [\ left \ {\ begin {array} {c} y^{2} -2 x+4 \ leq 0 \\ 2 x+y \ leq 8 \ end {array} \ right. \]
Problems of the Use (Unified state Exam) - Equations and Inequalites in Terms of A Parameter, Solved Both by Algebraic Methods and Geometric One.