SOLUTION: Write a function rule for the total cost in dollar of gasoline for$3 per gallon

Algebra ->  Equations -> SOLUTION: Write a function rule for the total cost in dollar of gasoline for$3 per gallon      Log On


   

Question 1084350: Write a function rule for the total cost in dollar of gasoline for$3 per gallon
Answer by ikleyn(52781) About Me  (Show Source):
You can put this solution on YOUR website!
.
totalCost(nGallons) = 3*nGallons,   


or


y(x) = 3x, 


where y is the total cost in dollars and x is the volume in gallons.