I need help for letter b and c please. The same that they are both looking for D and R. Please and thank you.

(b) What are the domain and range of the function y = f(x + 2)? (Use symbolic notation and fractions where needed. Give your answers as intervals in the form (*, *). Use the symbol co for infinity and the appropriate type of parenthesis "(", ")", "[", or "]" depending on whether the interval is open or closed.) D = R = (c) What are the domain and range of the function y = f(2x)? (Use symbolic notation and fractions where needed. Give your answers as intervals in the form (*, *). Use the symbol co for infinity and the appropriate type of parenthesis "(", ")", "[", or "]" depending on whether the interval is open or closed.)