1 the line ax + 2Y + 1 = 0 is perpendicular to the line x + Y-2 = 0, then what is the value of a? 2 find the minimum of the sum of the distances from any point on the x-axis to the fixed point (0,2), (1,1)?

1 the line ax + 2Y + 1 = 0 is perpendicular to the line x + Y-2 = 0, then what is the value of a? 2 find the minimum of the sum of the distances from any point on the x-axis to the fixed point (0,2), (1,1)?

Let's make these two functions into equations. According to the fact that two straight lines are perpendicular, we can get that their slopes are opposite. We can get xy and a from these two conditions`````