+0  
 
+1
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http://prntscr.com/ls77s3

 Dec 8, 2018
 #1
avatar+599 
-1

We see that the value of f(x) is going straight down, but not at a constant rate. That means the degree is odd, but not 1. The only answer here is C, or 3.

 

You are very welcome!

:P

 Dec 8, 2018

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