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Linear relationships: Worked example (refuelling a tank)

Rose Bay Secondary College 9Mat1 Linear relationships This GeoGebra file follows the worked example of the 2 lessons at the start of the topic 'Linear relationships'. A brief description of that example follows: A petrol tank initially has 10 litres (which would vary on the next occasion that the tank is refilled). The tank is refilled at a rate of m litres/second. Use the linear relationship formulae y = mx + b to find how long it would take to fill the tank up. Mr E Coonan, Prac Teacher