已知函数y=2x和抛物线y=ax2+3相交于点(2,b). (1)求a,b的值; 发布时间:2017-05-13 18:07 │ 来源:www.tikuol.com 题型:解答题 问题: 已知函数y=2x和抛物线y=ax2+3相交于点(2,b).(1)求a,b的值;(2)若函数y=2x的图象上纵坐标为2的点为A,抛物线y=ax2+3的顶点为B,求S△AOB.
题型:解答题 He got up________ catch the bus.[ ]A. in order that B. in order to C. so that D. such that 查看答案