Sedimentation Devils Lake, North Dakota, has a layer ofsedimentation at the bottom of the lake that increaseseveryyear. The depth of the sediment layer is modeled by thefunctionD(x) = 20 + 0.24xwhere x is the number of years since 1980 and D(x) is mea-sured in centimeters.(a) Sketch a graph of D.(b) What is the slope of the graph?(c) At what rate (in cm) is the sediment layer increasing peryear?

Given that the depth of the sediment is modeled by the function, Dx=20+0.24x Where “x” is the number…

Answered: Sedimentation Devils Lake, North…

Algebra and Trigonometry (MindTap Course List)

4th Edition

ISBN:9781305071742

Author:James Stewart, Lothar Redlin, Saleem Watson

Publisher:James Stewart, Lothar Redlin, Saleem Watson

Chapter2: Functions

Section2.5: Linear Functions And Models

Problem 48E

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Suppose that average annual income (in dollars) forthe years 1990 through 1999 is given by the linearfunction: I(x)=1,054x+23,286 , where x is thenumber of years after 1990. Which of the followinginterprets the slope in the context of the problem? a. As of 1990, average annual income was $23,286. b. In the ten-year period from 1990-1999, averageannual income increased by a total of $1,054. c. Each year in the decade of the 1990s, averageannual income increased by $1,054. d. Average annual income rose to a level of $23,286 bythe end of 1999.
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