The bar graph shows numbers of leisure trips within the United States (in millions of person trips of 50 or more miles one way) over the years 20092014 The function (t) 1458 95 42 ln t, t 1, where t represents the number of years since 2008 and (t) is the number of person trips, in millions, approx...

The year 2012 is represented by t 4 ...

The bar graph shows numbers of leisure trips within the United States (in millions of person-trips of

Question:

The bar graph shows numbers of leisure trips within the United States (in millions of person-trips of 50 or more miles one-way) over the years 2009–2014. The function

ƒ(t) = 1458 + 95.42 ln t, t ≥ 1,

where t represents the number of years since 2008 and ƒ(t) is the number of person-trips, in millions, approximates the curve reasonably well.

Use the function to approximate the number of person-trips in 2012 to the nearest million. How does this approximation compare to the actual number of 1588 million?

U.S. Domestic Leisure Travel Volume

2000 1500 1000 500 2009 2010 2011 2012 2013 2014 Year Person-Trips (in millions)