The function f is one-to-one. State the domain and the range of f and f-1. Write the domain and range in set-builder notation.f(x) = -7x + 3
A. f(x): D = {x|x > -7}, R is all real numbers;
f-1(x): D = {x|x < -7}, R is all real numbers
B. f(x): D = {x|x > -7}, R = {y|y > 3};
f-1(x): D = {x|x < -7}, R = {y|y < 3}
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 is all real numbers, R = {y|y > 3};
f-1(x): D is all real numbers, R = {y|y < 3}
Answer: C
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