Which of the following is an example of a relationship with a negative slope?

a.
less items purchased when quality decreases

b.
spending increases as incomes rise

c.
more items purchased when prices drop

d.
more items sold when quality improves

c. More items purchased when prices drop

Explanation:

Lets determine the two variables and their relation in each of the cases.

a)

Quality decreases. Quantity purchased decreases. Both item decreasing is a positive relation and thus would not yield a negative slope.

b)

Spending rises. Income rises. Both items increasing is a positive relation and thus would not yield a negative slope.

c)

Purchases increase. Price decrease. One item increases while the other decreases and thus is a negative relationship with a negative slope.

d)

Qty sold increases. Quality increases. Both items increasing is a positive relation and thus would not yield a negative slope.

Hope that helps.

a and c

explanation:

answer; proclamation of 1763;