The number N (in thousands) of cellular phone subscribers in Malaysia

The number N (in thousands) of cellular phone subscribers in Malaysia is shown in the table. (Midyear estimates are given.)

(a) Find the average rate of growth
(i) From 1995 to 1997
(ii) From 1995 to 1996
(iii) From 1994 to 1995
In each case, include the units.
(b) Estimate the instantaneous rate of growth in 1995 by taking the average of two average rates of change. What are its units?
(c) Estimate the instantaneous rate of growth in 1995 by measuring the slope of a tangent.

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  • CreatedJune 22, 2010
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