Bob drove 120 miles on his vacation .he drove an average of 1.2 times faster on the second 60 miles of his tripe than he did on the first 60 miles of his trip. which expression represents the time he spent driving ? let x= his speed in the first half of the trip.

Which statement best explains whether the table represents a linear or nonlinear function? input (x) output (y) 2 5 4 10 6 15 8 20 it is a linear function because the input values are increasing. it is a nonlinear function because the output values are increasing. it is a linear function because there is a constant rate of change in both the input and output. it is a nonlinear function because there is a constant rate of change in both the input and output.