Answer:
Only 3rd one is exponential and non linear.
Step-by-step explanation:
Linear functions are in the form of
and have a constant slope.
Nonlinear functions have a slope that varies between points.
Also, the linear functions are polynomials with highest exponent equal to 1 and all others are non linear.
Here, only option 3rd is not linear or non linear.
Other options are all in the form of
means linear.
Only 3rd one is exponential and non linear.