Given f (x) = 7 3r-1 and g (x) = 2- + 2 Elijah was asked to find f (g ( ) ). He showed the following work: Line 1: f (g (x)) = f (x2 + 2) Line 2: 3(23 12) Line 3: This answer is incorrect. Answer the following questions: A. On which line did Elijah make a mistake? Justify your answer. (5 points) B. Now show the correct way to solve this problem, showing all work like Elijah did above. (5