The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $380 for 480 mi and in June her cost was $450 for 760 mi. Assume that there is a linear relationship between the monthly cost Cof driving a car and the distance x driven. (a) Find a linear function C that models the cost of driving x miles per month. (b) Draw a graph of C. 600- 600- 500 500 400 400 300 300 200 200 100 100 x 200 400 600 800 1000 1200 1400 200 400 600 800 1000 1200 1400 600 600 500 500 400 400 300 300 200 200 100 100 200 400 600 800 1000 1200 1400 200 400 600 800 1000 1200 1400 What is the slope of this line? (c) At vwhat rate does Lynn's cost increase for every additional mile she drives? per mi

College Algebra
7th Edition
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:James Stewart, Lothar Redlin, Saleem Watson
Chapter2: Functions
Section2.5: Linear Functions And Models
Problem 50E: Manufacturing Cost The manager of a furniture factory finds that it costs $2200 to produce 100...
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The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $380 for 480 mi and in June her cost was $450 for 760 mi. Assume that there is a linear relationship between the monthly cost C of driving a car and the distance x driven.
(a) Find a linear function C that models the cost of driving x miles per month.
C(x) =
(b) Draw a graph of C.
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What is the slope of this line?
(c) At what rate does Lynn's cost increase for every additional mile she drives?
per mi
Transcribed Image Text:The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May her driving cost was $380 for 480 mi and in June her cost was $450 for 760 mi. Assume that there is a linear relationship between the monthly cost C of driving a car and the distance x driven. (a) Find a linear function C that models the cost of driving x miles per month. C(x) = (b) Draw a graph of C. 600- 600 500 500 400- 400 300 300 200 200 100 100 200 400 600 800 1000 1200 1400 200 400 600 800 1000 1200 1400 600 600 500 500 400 400 300 300 200 200 100 100 200 400 600 800 1000 1200 1400 200 400 600 800 1000 1200 1400 What is the slope of this line? (c) At what rate does Lynn's cost increase for every additional mile she drives? per mi
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