Question

СРОЧНО!!!! ОЧЕНЬ НАДО!!!!! ПОЖАЛУЙСТА!!!!!​

Answer 1

$\left \{ {{y = -x -1} \atop {x=-(x - 1)^{2} + 4}} \right. \\-x -1 = -(x-1)^2 +4\\x= -1\\x=4\\y=-(-1)-1\\y = -4 -1\\y = 0\\y = -5\\\left \{ {{0=-(-1)-1} \atop {0=-(-1-1)}^2 + 4} \right. \\\left \{ {{-5=--4-1} \atop {-5=-(4-1)^2 + 4} \right. \\\left \\\\left \{ {{0=0} \atop {0=0}} \right. \\\left \{ {{-5=-5} \atop {-5=-5}} \right. \\(x_{1}, y_{1} } ) = (-1, 0)\\(x_{2}, y_{2} ) = (4, -5)$