The number A of tablet
complrters sold (in millions) can be modeled by the
functionA : 4.5t2 + 43.5t * 17, where /represents
the year after 2010.
A . In what year did the tablet computer sales reach
65 million?
B . F'ind the average rate of change from 2010 to 2012 and interpret the meaning in the context of
the situation.
C . Do you think this model will be accurate after a new, innovative computer is developed? Explain.

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I substitute a = 65
I solve t=1
Then 1+ 2010 = 2011 ?

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