Instructions: Answer all questions. Show your works in the given space. 1. For each quadratic function, determine the y-intercept, zeros, and then find the coordinates of the vertex by completing the square. Graph each relation, label fully. a) y=x2 - 4x + 3 b) y=-2x2 + 4x +6 y-intercept: /1] y-intercept: [K /1] zeros: and [K /3] zeros: and K 13] Completing the square : Completing the square : vertex: [K /4] Graph [C /3] vertex: [K /4] Graph [C /3] 10 -10