Often new technology spreads exponentially. Between 1995 and 2005, each year the number of Internet domain hosts was 1.43 times the number of hosts in the preceding year. In 1995, the number of hosts was 8.2 million. (a) Explain why the number of hosts is an exponential function of time. The number of hosts grows by a factor of  each year, this is an exponential function because the number is growing by  ---Select--- decreasing constant increasing multiples. (b) Find a formula for the exponential function that gives the number N of hosts, in millions, as a function of the time t in years since 1995. N =        (c) According to this model, in what year did the number of hosts reach 49 million? (Round your answer to the nearest year.)

College Algebra
1st Edition
ISBN:9781938168383
Author:Jay Abramson
Publisher:Jay Abramson
Chapter6: Exponential And Logarithmic Functions
Section6.1: Exponential Functions
Problem 62SE: A scientist begins with 100 milligrams of aradioactive substance that decays exponentially. After 35...
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Often new technology spreads exponentially. Between 1995 and 2005, each year the number of Internet domain hosts was 1.43 times the number of hosts in the preceding year. In 1995, the number of hosts was 8.2 million.

(a) Explain why the number of hosts is an exponential function of time.
The number of hosts grows by a factor of  each year, this is an exponential function because the number is growing by  ---Select--- decreasing constant increasing multiples.

(b) Find a formula for the exponential function that gives the number N of hosts, in millions, as a function of the time t in years since 1995.
N = 
 
 
 


(c) According to this model, in what year did the number of hosts reach 49 million? (Round your answer to the nearest year.)
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