如图,抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为如图, 抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为(2,0)(1)求抛物线解析式.求得y=1/2x ²+x-4.(2
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![如图,抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为如图, 抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为(2,0)(1)求抛物线解析式.求得y=1/2x ²+x-4.(2](/uploads/image/z/1628987-59-7.jpg?t=%E5%A6%82%E5%9B%BE%2C%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D1%2F2x%26%23178%3B%2Bbx%2Bc%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%280%2C-4%29%2C%E4%B8%8E+x%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9A%2CB%E4%B8%94B%E7%82%B9%E5%9D%90%E6%A0%87%E4%B8%BA%E5%A6%82%E5%9B%BE%2C+%E6%8A%9B%E7%89%A9%E7%BA%BFy%3D1%2F2x%26%23178%3B%2Bbx%2Bc%E4%B8%8Ey%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9C%280%2C-4%29%2C%E4%B8%8E+x%E8%BD%B4%E4%BA%A4%E4%BA%8E%E7%82%B9A%2CB%E4%B8%94B%E7%82%B9%E5%9D%90%E6%A0%87%E4%B8%BA%282%2C0%29%EF%BC%881%EF%BC%89%E6%B1%82%E6%8A%9B%E7%89%A9%E7%BA%BF%E8%A7%A3%E6%9E%90%E5%BC%8F.%E6%B1%82%E5%BE%97y%3D1%2F2x+%26%23178%3B%2Bx-4.%EF%BC%882)
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如图,抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为如图, 抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为(2,0)(1)求抛物线解析式.求得y=1/2x ²+x-4.(2
如图,抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为
如图, 抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为(2,0)(1)求抛物线解析式.求得y=1/2x ²+x-4.(2)若点P是AB上的一动点,过点P作PE‖AC,交BC于E,连接CP,求三角形PCE面积最大值(3)若点D为OA中点,点M是线段AC上一点,且三角形OMD为等腰三角形,求M的坐标
如图,抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为如图, 抛物线y=1/2x²+bx+c与y轴交于点C(0,-4),与 x轴交于点A,B且B点坐标为(2,0)(1)求抛物线解析式.求得y=1/2x ²+x-4.(2
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