For Exercises, match the correct graph A–F to the function without using your calculator. Notice that there are more functions than graphs; some of the functions are equivalent. After you have answered all of them, use a graphing calculator to check your answers. Each graph in this group is plotted on the window [2, 2] by [4, 4].

y = 3^x  

-2 -2 -2 4 -4 (A) 4 -4 (C) 4 LI -4 (E) 2 2 2 -2 -2 -2 4 -4 (B) 4 -4 (D) 4 -4 (F) 2 2