Question

Which of the following questions have a domain of
(-infinity, infinity) and a range of (-2, infinity)?
f(x) = 3^x + 2
f(x) = 3^x - 2 (This one? )
f(x) = 0.25^x +2
f(x) = 0.25^x - 2 (and this one?)

Answer 1

b