Which of these functions are linear? Select all that apply.

Answer:
Step-by-step explanation: b because they have to be in y=Mx +b form
Answer:
nonlinear, linear, nonlinear, nonlinear, linear, linear
Step-by-step explanation:
A- 4/x is not linear
B- linear
C- nonlinear because of 2x^3
D- nonlinear because of 2^x
E- linear
F- linear