Which equation best represents the model?

Which of the following is true for the relation f(x)=2x^2+1

What are the excluded values? m+5/mn+3m

Describe the end behavior of the function below. f(x)=(2/3)^x-2 a. as x increases, f(x) approaches infinity. b. as x decreases, f(x) approaches 2. c. as x increases, f(x) approaches -2. d. as x decreases, f(x) approaches negative infinity.