In Exercises 69–70, traffic speed S along a certain road (in kilometers per hour) varies as a function oftraffic density q (number of cars per kilometer of road). Use the following data to answer the questions:q (density) 60S (speed)90 100708072.5 67.5 63.5605669. Estimate S'(80).

We use the x=70 and x=90 to find the slope of the secant

Answered: In Exercises 69–70, traffic speed S…

Calculus: Early Transcendentals

8th Edition

ISBN:9781285741550

Author:James Stewart

Publisher:James Stewart

Chapter1: Functions And Models

Section: Chapter Questions

Problem 1RCC: (a) What is a function? What are its domain and range? (b) What is the graph of a function? (c) How...

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In Exercises 69–70, traffic speed S along a certain road (in kilometers per hour) varies as a function of traffic density q (number of cars per kilometer of road). Use the following data to answer the questions: q (density) 60 S (speed) 90 100 70 80 72.5 67.5 63.5 60 56 69. Estimate S'(80).