What is the equation of the line that passes through (5;-2) and (-3;4

1. what is the formula for finding the vertical distance between two points on a coordinate plane?

Which math sentence can be used to determine if the triangle is a right triangle?

Tom wants to order tickets online so that he and three of his friends can go to a water park the cost of the tickets is 16.00 per person there is also a 2.50 one-time service fee for ordering tickets online write an expression in term of n that represents the cost for n ordering tickets online