list the independent and dependent variables for each situation:
(a) my height depends on my age.
(b) the amount of sleep I get determines what mood I am in.
(c) the amount of water in a bathtub is a function of the amount of time the water has been running.
(d) my distance from home varies with my speed.
(e) the amount of homework I do affects my average speed.
(f) the amount of homework I do depends on how much is assigned.
Independent variable = age Dependent variable = height
"depends on age" indicates that age is independent.
----------------------------------- Part (b)
Independent variable = amount of sleep Dependent variable = mood
The key word is "determines". The stuff before this word is the independent variable which affects the dependent variable. ----------------------------------- Part (c)
Independent variable = time water has been running dependent variable = amount of water in the tub
Time is usually the independent variable ----------------------------------- Part (d)
Independent variable = speed dependent variable = distance from home
