Answer:
Quadratic functions have no domain restrictions. Since x2 ≥ 0, x2 + 7 ≥ 7. ... Negative values can be used for x, but the range is restricted because x2 ≥ 0. The correct answer is: The domain is all real numbers and the range is all real numbers f(x) such that f(x) ≥ 7.
Step-by-step explanation:
