Word problem for 10n=420

Choose the point slope form of the equation below that represents the like that passes through the points (-6,4) and (2, 0)

Determine if the equation defines y as a function of x: 2xy = 1. yes o no

In the diagram, a building cast a 35-ft shadow and a flagpole casts an 8-ft shadow. if the the flagpole is 18 ft tall, how tall is the building? round the the nearest tenth.