Which of the following is a nonlinear function? a. during a storm, a team of researchers calculates the rain is falling at a rate of 1.2 centimeters per hour. b. ronald has a car that depreciates in value by 11% every year. c. edith is a member of a magazine subscription program. she pays $11 for five magazines. d. sam's weekly pay increases by $50 every year stays at the same job.