F(x)=(x-3)^2/(x-6) is concave up for x>6?

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Why is f(x)=(x-3)^2/(x-6) not concave up for x>6?
It looks like it is from the graph.
 
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Why do you think that it's not concave up for x > 6?
 
concave up is the wrong answer in a multiple choice question :)
 
If we're talking about y = (x - 3)2/(x - 6), then the graph of this function is concave up for x > 6. Period.
 
ah okay!
 
It's been known to happen that the answers in the back of a book are wrong. In my experience, the higher-level math books have more errors in the answers.
 

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