Write an equation of the line passing through the point A(-1, 5) that is perpendicular to the line y = 1/7 x +4

What is the distance between point a and b

The boiling point of water at an elevation of 0 feet is 212 degrees fahrenheit (°f). for every 1,000 feet of increase in elevation, the boiling point of water decreases by about 2°f. which of the following represents this relationship if b is the boiling point of water at an elevation of e thousand feet? a) e = 2b - 212 b) b = 2e - 212 c) e = -2b + 212 d) b = -2e + 212

Which coefficient matrix represents a system of linear equations that has a unique solution ? options in photo*