SOLUTION: Cost of car $158.60 a month and 39 cents a mile for gas, oil and maintenance. Find values for m + b so that y = mx+b models the monthly cost of driving the car x miles. What does

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Cost of car $158.60 a month and 39 cents a mile for gas, oil and maintenance. Find values for m + b so that y = mx+b models the monthly cost of driving the car x miles. What does       Log On


   

Question 614978: Cost of car $158.60 a month and 39 cents a mile for gas, oil and maintenance. Find values for m + b so that y = mx+b models the monthly cost of driving the car x miles. What does the value of b represent?
Answer by lwsshak3(11628) About Me  (Show Source):
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Cost of car $158.60 a month and 39 cents a mile for gas, oil and maintenance. Find values for m + b so that y = mx+b models the monthly cost of driving the car x miles. What does the value of b represent?
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y=mx+b
m=slope of line=.39/mile
b=y-intercept=158.60
equation: y=.39x+158.60 (monthly cost of driving the car x miles)
The value of b represents a fixed cost regardless of the miles driven.