已知函数y=x+b和y=ax+3的图像交点为p,则不等式x+b<ax+3的解集为 p为(1,)
人气:336 ℃ 时间:2019-08-19 13:55:46
解答
由图知:当直线y=x+b的图象在直线y=ax+3的上方时,不等式x+b>ax+3成立;
由于两直线的交点横坐标为:x=1,所以:当x>1时,x+b>ax+3
p为(1,+∞)
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