Select Linear or Nonlinear to correctly classify each function. Function Linear Nonlinear 72=x3+y Linear – 72 equals x cubed end power plus y Nonlinear – 72 equals x cubed end power plus y y+1=5(x−9) Linear – y minus x squared equals 4.5 Nonlinear – y minus x squared equals 4.5 7y + 2x = 12 Linear – 7y + 2x = 12 Nonlinear – 7y + 2x = 12 4y = 24 Linear – 4y = 24 Nonlinear – 4y = 24