Author Question: A time-series graph displays the price of copper. The slope of the line is negative for periods when ... (Read 141 times)

nummyann · **on:** Jun 29, 2018

A time-series graph displays the price of copper. The slope of the line is negative for periods when the

A) price of copper is falling.
B) price of copper is rising.
C) quantity of copper is falling.
D) price of copper is low and not changing.

Question 2

If marginal utility is positive but diminishing, as more units of a good are consumed, then the total utility from the good must be

A) falling.
B) positive and rising at an increasing rate.
C) positive and rising at a decreasing rate.
D) positive and rising at any rate.