## Identify an Antiderivative Function |
HELP |

On the left is a graph of a function `f`, and one of the three graphs on the right
is an *antiderivative* of `f`. Make a guess and check your answer by clicking
the red question mark buttons.
Give yourself a new, randomized problem by clicking the "Reset Graphs" button.
(By the way, why do we write *an* antiderivative of `f` instead of *the* antiderivative
of `f`?)