【简答题】抛物线 y = ax 2 + bx + c 上部分点的横坐标 x ,纵坐标 y 的对应值如下表: x … -2 -1 0 1 2 … y … 0 -4 -4 0 8 … 小题1:(1)根据上表填空: ①抛物线与 x 轴的交点坐标是 和 ; ②抛物线经过点(-3, ); ③在对称轴右侧, y 随 x 增大而 ; 小题2:(2)试确定抛物线 y = ax 2 + bx + c 的解析式.
【简答题】Which paragraph contains the following information? Fill in the blanks with the corresponding paragraph numbers. 2. Some American farmers cannot afford the requirements to be certified as organic.