What are the domain and range of the real-valued function f(x) = -2 + yx+7?
a. The domain is x-7, and the range is f(x) > -2.
b. The domain isx >7, and the range is f(x) > -2.
c. The domain is x > – 7, and the range is all real numbers.
d. The domain is x > –7, and the range is f(x) > 2.