34 points I Previous Answers SPreCalc7 25049 My Notes Ask Yo

34 points I Previous Answers SPreCalc7 2.5.049 My Notes Ask Your Te The monthly cost of driving a car depends on the number of miles driven. Lynn found that in May driving cost was $3 for mi and in her cost was so for 760 mi. Assume that there is a linear relationship between the monthly cost of driving a car and the distance x driven. (a) Find a linear function c that models the cost of driving x miles pe month. x+ 260

Solution

rate is same as slope because rate is change is y with respect to change in x
so, rate=1/4 or $0.25 per mi
so rate increases at  $0.25 per mi