The graph shows that while it was being filled, the amount of water in gallons in a
the swimming pool was approximately proportional to the time that passed in
minutes.
a. About how much water was in
the pool after 25 minutes?
b. Approximately when were
there are 500 gallons of water in
the pool?
c. Estimate the constant of
proportionality for the gallons
of water per minute going
into the pool
