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2.)
ANALYZE A PROBLEM In Exercises 15 and 16, identify
the independent and dependent variables.
15, the number of quarters you put into a parking meter
and the amount of time on the meter
16. the amount of gasoline in a car's fuel tank and the
amount of time spent driving
17. MODELING REAL LIFE A cell phone plan costs $30
for each line. (See Example 4.)
a. Does the situation represent a function? If so,
identify the independent and dependent variables.
b. You can have a maximum of four lines on a plan.
Find the domain and range.answer only the circled ones
