For this exercise, round all regression parameters to three decimal places. The table below shows the average cost C, in dollars, of chemistry and physics periodicals t years after 1980. t = years since 1980 C = cost in dollars 0 140 5 250 10 410 15 780 20 1300 22 1520 Make an exponential model of C as a function of t. What was the yearly percentage growth rate of the cost of chemistry and physics periodicals? (Use the model found in part (a). Round your answer to one decimal place.) % (d) If this exponential trend continues, what will be the expected average cost of physics and chemistry periodicals in 2024? Round your answer to the nearest dollar. (Use the model found in part (a).) $

Question

For this exercise, round all regression parameters to three decimal places.

The table below shows the average cost C, in dollars, of chemistry and physics periodicals t years after 1980.

t = years since 1980
C = cost in dollars
0 140
5 250
10 410
15 780
20 1300
22 1520

Make an exponential model of C as a function of t.
What was the yearly percentage growth rate of the cost of chemistry and physics periodicals? (Use the model found in part (a). Round your answer to one decimal place.)
%

(d) If this exponential trend continues, what will be the expected average cost of physics and chemistry periodicals in 2024? Round your answer to the nearest dollar. (Use the model found in part (a).)
$

 

 

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