Question

bell ringer - graphing
amount of nitrogen in water, ppm
nitrogen in water, ppm
distance from sewage treatment plant, kilometers
what is the dependent variable?
○ distance from sewage plant
○ amount of nitrogen in water
○ date and time
○ velocity of sewage

Explanation:

In a graph, the dependent variable is the one that depends on the independent variable (plotted on the x - axis). Here, the x - axis is "distance from sewage treatment plant" (independent variable), and the y - axis (dependent variable) represents "amount of nitrogen in water" as its value changes with the distance from the sewage plant. The other options (date and time, velocity of sewage) are not represented on the graph, and "distance from sewage plant" is the independent variable.

Answer:

B. amount of nitrogen in water