The number of asthma sufferers in the world was about 84 million in 1990 and 130 million in 2001. Let N represent the number of asthma sufferers (in millions) worldwide t years after 1990.part a. Write N as a linear function of t. Use exact values in your formula, not decimal approximations.part b. Write N as an exponential function of t. Use exact values in your formula, not decimal approximationspart c. How many asthma sufferers are predicted worldwide in the year 2018 with the linear model?

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Asked Oct 1, 2019
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The number of asthma sufferers in the world was about 84 million in 1990 and 130 million in 2001. Let N represent the number of asthma sufferers (in millions) worldwide t years after 1990.

part a. Write N as a linear function of t. Use exact values in your formula, not decimal approximations.

part b. Write N as an exponential function of t. Use exact values in your formula, not decimal approximations

part c. How many asthma sufferers are predicted worldwide in the year 2018 with the linear model?

 

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Expert Answer

Step 1

(a) It is given that the asthma patients were 84 million in 1990 and 130 million in 2001.Let N represent number of asthma patient after 1990.Let the coordinate points be (0,84) and (11,130).Obtain N as a linear function of t.

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m--и 130 84 т- 11 0 46 т 11

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Step 2

Use the slope and the point (0,84) to find the linear function of t.

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N mtb 46 84 = 11 (0)b b 84

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Step 3

(b) Use the points (0,84) and (11,130) to obta...

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N ab at (0,84) 84 ab° a 84 at (11,130 130 84b1" b1130 84 130 84 b 1.041

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