SOLUTION: A home uses 8 gallons of oil each day for heat. If it's oil storage tank is filled to 275 gallons, the function y=275-8x represents the number of gallons remaining in the tank afte
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Question 935900: A home uses 8 gallons of oil each day for heat. If it's oil storage tank is filled to 275 gallons, the function y=275-8x represents the number of gallons remaining in the tank after x days of use. Explain what the x-intercept represents and determine when the tank would be half full.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
The x-intercept is the point ( x,0 )
Since at the x-intertcept, this
is the point where the remaining gallons
of oil in the tank = , and the value
of will be the number of days to
use up all gallons
-------------------------------
The tank will be half full when the remaining
gallons = , so I can say:
Multiply both sides by
The tank will be half full during the 17th day
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