To bill customers for water usage, one city converts the number of gallons used into units. This relationship is represented by the equation u is equal to 748 g , 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 correct answers.
Answer
A
u is the independent variable.
B
u is the dependent variable.
C
g is the independent variable.
D
g is the dependent variable.
E
The two variables cannot be labeled as independent or dependent without a table of values.
Explanation
The equation says that the number of units, u, is determined by the number of gallons, g. Thus, g is the independent variable, and u is the dependent variable. The true statements are that u is dependent and g is independent.
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