Directions : determine which solution is linear and which is nonlinear. for the linear solution you will need to write a function that models in and then write 1 ordered pair that is a solution and explain its meaning in the context of the solution. 1.) alex is biking down hill. he starts at 2 mph. for each second he rides down the hill, his speed doubles. 2.) charlie is getting a book printed. it costs $7 plus $0.50 for each page added. !