Determine i) the domain of the function, ii) the range of the function, iii) the domain of the inverse, and iv) the range of the inverse.f(x) = -2x - 1

Question

A. f(x): D = {x|x > -2}, R is all real numbers;
f-1(x): D = {x|x < -2}, R is all real numbers
B. f(x): D is all real numbers, R = {y|y > -1};
f-1(x): D is all real numbers, R = {y|y < -1}
C. f(x): D is all real numbers, R is all real numbers;
f-1(x): D is all real numbers, R is all real numbers
D. f(x): D = {x|x > -2}, R = {y|y > -1};
f-1(x): D = {x|x < -2}, R = {y|y < -1}

Answer 1

Answer: C