To bill customers for water usage, one city converts the number of gallons used into units. This relationship is represented by the equation g = 748u, where g is the total number of gallons of water used and u is the number of units. Determine which statements about the relationship are true. Choose two options.

g is the dependent variable.
u is the dependent variable.
g is the independent variable.
u is the independent variable.
The two variables cannot be labeled as independent or dependent without a table of values.

For this we will analyze each statement:

A.) g is the dependent variable - This one is correct because it will depend on the value of u.

B.) u is the dependent variable. - This one is wrong because u is the independent variable.

C) u is the independent variable. - This one is correct because you can give the value to u and in return you can get value of g.

D.) the variables cannot be labeled without a table of values. - This statement is wrong   you can look for for the answer in the above statements.

E.) the variables cannot be labeled since any value can be selected for either. - This statement is also wrong.

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