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.
One barrel of crude oil accounts for about 19 gallons of gasoline. The other 22 to 25 gallons is divided like this: about 10 gallons of diesel, roughly 4 gallons of jet fuel, close to 2 gallons of heating oil and about 7.3 gallons for other petrochemical products like tar, asphalt, bitumen, etc.