10) Solve the system of equations: x - 2y + 5z = -6 x+2y+3z=0 x + 3y + 2z =5 154 X+ X 70 107 20 - 9 Kan 10\f2) Using the quadratic formula, solve the quadratic equation. Express your answer in simplest form. x2 - 4x +8=0 x =- -btvb2-4ac 2a ( 1 X 1 - 323) y = x2+ 4x-5 a) Find the vertex of the quadratic function. read the directions ( x - 1 ) ( x + 5 ) : 0 X - 1: 0 b) Find the x and y intercepts of the quadratic function. TO : c) Plot the points found and draw a rough sketch of the parabola. C Kan 3\f7) a) Write the equation of the line that contains the point (6, 7) and is perpendicular to 3x + 2y = -6 b) Graph the equation: 2y + x = 10 10 10 Kan 78) Write the equation of the circle in standard form (x + h)2 + (y + k)2 =r2. Identify the center and radius of the circle and graph it. Label 4 points on the graph with coordinates. x2 + 10x + y2 - 4y = -13 XX - 4 - 2 Center: Radius: - 2 10 Kan 8\f