Finding the Domain Without the Graph. OK, so suppose we don't have the graph of a function to look at like in the last section... Can we still find the domain and range? So, we'll just be doing domains on these -- which is really where the action is anyway. Asking for the domain of a function is the same as asking. What are all the possible x guys.
1 barrel of crude oil = 42 US gallons (159 liters or 35 imperial gallons). It produces from about 35 percent to 42 percent of gasoline or petrol, plus many other products such as kerosene, etc.
1 One barrel of crude oil contains 42 gallons which creates 45 gallons of petroleum products. 2  About 47% of each barrel of crude oil is refined into automobile gasoline. 3  In the US an average of about 2.5 gallons of crude oil are consumed per person each day.