Question

The number of camera phones shipped globally can be modeled by the function y=1.28e^1.31x where x is the number of years since 1997 and years since 1997 and y is the number of camera phones shipped in millions. how many camera phones were shipped in 2014

Answer 1

The first thing you should know for this case is how many years there are from 1997 to 2014.
 The number of years is:
 x = 2014-1997 = 17
 Then, you must replace this value in the given equation:
 y = 1.28e ^ 1.31x
 y = 1.28 * e ^ (1.31 * (17))
 y = 6011018736
 answer:
 the number of camera phones shipped in millions in 2014 is
 y = 6011018736