Answer:
f (x) = 2ˣ
g (x) = f (x) - 3
Answer 1 = g (x) = 2ˣ - 3
Answer 2 =g (x) = 2⁰ - 3 = 1 - 3 = -2
Answer 3 = g (x) = 2¹ - 3 = 2 - 3 = -1
Answer 4 = g (x) = 2² - 3 = 4 - 3 = 1
