A) y = 4 - 11/3x.
B) y = 3 +3/4x.
C) y = 4 -3/4x.
D) y = 4 + 11/3x.
234) If we are considering the relationship between two variables and release the "other things equal" assumption, we would expect:
A) the relationship to change from direct to inverse.
B) the line representing that relationship on a graph to change locations.
C) the data points representing the relationship to become more randomly scattered.
D) the relationship to change from inverse to direct.
235) The amount of pizzas that consumers want to buy per week is reflected in the equation P = 15 -.02Qd, where Qd is the amount of pizzas purchased per week and P is the price of pizzas. On the basis of this information we can say that:
A) if pizzas were free, people would consume 800 per week.
B) more pizzas will be purchased at a high price than at a low price.
C) if the price of pizzas is $6, then 150 will be purchased.
D) 50 fewer pizzas will be purchased per week for every $1 increase in price.
236) Refer to the below diagram. The slope of curve ZZ at point B is:
A) infinity.
B) zero.
C) one.
D) none of the these are true.
237) The slope of a line parallel to the vertical axis is:
A) zero.
B) one.
C) infinite.
D) one-half.
238) The slope of a line parallel to the horizontal axis is:
A) zero.
B) one.
C) infinite.
D) one-half.
239) The measured slope of a line:
A) is independent of how the two variables are denominated.
B) will be affected by how the two variables are denominated.
C) necessarily diminishes as one moves rightward on the line.
D) necessarily increases as one moves rightward on the line.
240) Slope of lines are especially important in economics because:
A) they measure marginal changes.