For each situation below, identify the independent variable and dependent variable.

(a) Austin sells used cars. The table below shows how the price of each car he sold has been affected by the car's age.
Car's age
in years
Car's price
in dollars
Identify the independent and dependent variables.
Independent variable:
(Choose one)
Dependent variable:
(Choose one)
(b) Jina is a runner. The graph below shows how the number of training miles she runs affects her time to finish a race.
y102030405060708090x1020304050607080901001100
Identify the independent and dependent variables.
Independent variable:
(Choose one)
Dependent variable:
(Choose one)

(a)

Independent variable: Car's age in years
Dependent variable: Car's price in dollars

(b)
Independent variable: Number of training miles
Dependent variable: Time to finish a race