Explain, using these theorems, why the function is continuous at every number in its domain. 7v - 1 g(v) = V2 + 2V - 63 O g(v) is a rational function, so it is continuous at every number in its domain. O g(v) is a trigonometric, so it is continuous at every number in its domain. O g(v) is a polynomial, so it is continuous at every number in its domain. O g(v) is an exponential function, so it is continuous at every number in its domain. O g(v) is not continuous at every number in its domain. State the domain. (Enter your answer using interval notation.)