The quantity represented by x is a function that changes over time (i. e., is not constant). the quantity represented by is a function that changes over time (i. e., is not constant). a. true b. false

 On the first question, x in the graph does not represent the changes over time. It shows the time and year of the problem. The second question's answer is also false. The teta or angle of the question does not also represent the changes over time but the year it is being studied.

Ithink the answer is d.