晚上发的加分 图在我空间相册中,如图是一次函数y1=mx+n与二次函数y2=ax2+bx+c的图像(1)根据图中数据,求出两函数解析式(2)根据图像回答1.当x为何值时y1>0,y2<0?2.当x为何值时y2>0,y2<0?3.
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![晚上发的加分 图在我空间相册中,如图是一次函数y1=mx+n与二次函数y2=ax2+bx+c的图像(1)根据图中数据,求出两函数解析式(2)根据图像回答1.当x为何值时y1>0,y2<0?2.当x为何值时y2>0,y2<0?3.](/uploads/image/z/12070397-29-7.jpg?t=%E6%99%9A%E4%B8%8A%E5%8F%91%E7%9A%84%E5%8A%A0%E5%88%86+%E5%9B%BE%E5%9C%A8%E6%88%91%E7%A9%BA%E9%97%B4%E7%9B%B8%E5%86%8C%E4%B8%AD%2C%E5%A6%82%E5%9B%BE%E6%98%AF%E4%B8%80%E6%AC%A1%E5%87%BD%E6%95%B0y1%3Dmx%2Bn%E4%B8%8E%E4%BA%8C%E6%AC%A1%E5%87%BD%E6%95%B0y2%3Dax2%2Bbx%2Bc%E7%9A%84%E5%9B%BE%E5%83%8F%EF%BC%881%EF%BC%89%E6%A0%B9%E6%8D%AE%E5%9B%BE%E4%B8%AD%E6%95%B0%E6%8D%AE%2C%E6%B1%82%E5%87%BA%E4%B8%A4%E5%87%BD%E6%95%B0%E8%A7%A3%E6%9E%90%E5%BC%8F%EF%BC%882%EF%BC%89%E6%A0%B9%E6%8D%AE%E5%9B%BE%E5%83%8F%E5%9B%9E%E7%AD%941.%E5%BD%93x%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6y1%EF%BC%9E0%2Cy2%EF%BC%9C0%3F2.%E5%BD%93x%E4%B8%BA%E4%BD%95%E5%80%BC%E6%97%B6y2%EF%BC%9E0%2Cy2%EF%BC%9C0%3F3.)
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