Water from a leaking faucet is dripping into a cylindrical cup. The height of water in inches, y, after x hours is graphed below. Dripping Water
A graph with hours on the x-axis and height (inches) on the y-axis. A line goes through points (1, 2), (2, 4), and (3, 6).

Which describes the pattern of the data in the graph?
The water level increases by 1 inch each hour.
The water level increases by 2 inches each hour.
The water level increases by a factor of one-half each hour.
The water level increases by a factor of 2 each hour.
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