1. Here are descriptions of four situations in which the volume of water in a tank is a function of time. Match each description to a corresponding graph.
Graph 1
Graph 2
Graph 3
Graph 4
Lurr
A.
B.
C.
An empty 20-gallon water tank is filled at a constant rate for 3 minutes until it is
half full. Then, it is emptied at a constant rate for 3 minutes.
A full 10-gallon water tank is drained for 30 seconds, until it is half full.
Afterwards, it gets refilled.
A 2,000-gallon water tank starts out empty. It is being filled for 5 hours, slowly at
first, and faster later,
An empty 100-gallon water tank is filled in 50 minutes. Then, a dog jumps in and
splashes around for 10 minutes, letting 7 gallons of water out. The tank is refilled
afterwards.
D.
d
7 The praphs show the distance, d, traveled by