F5. Kimberly wrote 9 papers for her psychology class. She wants to put 7 papers in her portfolio and is deciding on what order to put them in. How many different ways can Kimberly arrange her papers?

1. unlikely2. unlikely

Horizontal asymptote at  tells us that the original graph has been translated down.since  ,  are positive.  also we can say that the point  has a smaller  -coordinate than  .this means that the  transformed exponential function is increasing as it goes to the right. as it goes from  to , the value of the exponential function increases. it goes from to something bigger, . therefore, as  . the left hand would be the side that approaches the horizontal asymptote.so the answer is d