Use the graph below to answer the following question.
Find the slope of the line. Describe how one variable changes in relation to the other.
a line is graphed on a coordinate grid.
The title of the graph is Draining Tub. The horizontal axis is titled time in minutes. The vertical axis is titled Water in gallons.
A line is graphed starting at the point with coordinates 0 comma 14, then passing through the point with coordinates 3 comma 12, the point with coordinates 6 comma 10, the point with coordinates 9 comma 8, the point with coordinates 12 comma 6, and the point with coordinates 15 comma 4.
A. start fraction 2 over 3 end fraction; the amount of water decreases by 2 gallons every 3 minutes.
B. negative two-thirds; the amount of water decreases by 2 gallons every 3 minutes.
C. negative three-halves; the amount of water decreases by 3 gallons every 2 minutes.
D. –1 ; the amount of water decreases by 1 gallon per minute.