The constant of the function would be 6.
Hope this helps!
Answer: Translate the graph of y=|x| 6 units to the right.
So, basically substitute as many times as they tell you (I don;t see it):
a1=4, a2=2*4-1=7, a3=2*7-1=13, ... As you see it grows up pretty quickly so that's why I think your statement may be missing how many times.
2/3 of the product of 3/8 and 16 is 4