Question

which term describes what is happening in the amount per trial vs. time graph?
options:
nothing is consumed.
a changing amount is eaten.
a constant amount is eaten.
a negative amount is eaten.

Explanation:

Step1: Analyze the graph

The graph shows a line with a positive slope, meaning as time (x - axis) increases, the amount consumed per trial (y - axis) also increases. So the amount eaten is changing (increasing) over time.

Step2: Evaluate the options

• "Nothing is consumed": The graph starts at 2 and increases, so this is wrong.
• "A changing amount is eaten": Matches the graph's trend (increasing amount over time).
• "A constant amount is eaten": A constant amount would be a horizontal line, but the graph is sloped, so wrong.
• "A negative amount is eaten": The y - axis (amount) is positive, so wrong.

Answer:

B. A changing amount is eaten.