Answer:
im pretty sure its 1b 2a 3d 4c for the first row... if im reading it right. second row is 5c 6b 7a 8d i think. third row is 9b 10d 11a 12c. hope it helped :)
Explanation:
i just plugged the functions into the y= in the calculator. i have the ti-84 plus ce calculator, but if you dont you can use one online