There was some firewood on a pile. Ms. Mitchell adds 5/8 pounds of firewood. If there is now 3 1/8 pounds of firewood on the pile, how many pounds of firewood was there to start with?

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.