题目

No-friend eating trendWhen you eat lunch in a restaurant, you might see many people eating by themselves, watching videos on their phones. 【1】 Do you worry they’re lonely?You probably didn’t even notice because you were looking at your own phone. The New York Post says that eating alone with electronic devices is a growing trend among young people around the world.According to a new survey conducted by OnePoll on behalf of the US-based Highbush Blueberry Council, the average adult eats six meals alone each week and 387 meals each year.【2】 Maybe not.“The way we define ‘togethern如图，平面直角坐标系中，直线y＝2x＋m与y轴交于点A，与直线y＝－x＋5交于点B（4，n），P为直线y＝－x＋5上一点.（1）求m，n的值；（2）求线段AP的最小值，并求此时点P的坐标.