18) The relationship of annual marketing effort to annual sales revenue is assumed to be
________ of the sales response function.
A) a horizontal straight line, where sales revenues stay the same regardless of the marketing
effort
B) a U-shaped curve, where sales revenues are at a maximum at either end
C) an upside-down U-shaped curve, where sales revenues are at a maximum in the middle
D) an S-shaped curve, which shows that an additional marketing effort in the midrange of the
curve results in far greater increases of sales revenue than at either end of the curve
E) a rising straight line, where sales revenue continuously rises as the marketing effort rises
19) The firm’s annual marketing effort, such as advertising, personal selling, sales promotion,
direct marketing, and public relations expenses is ________ in a sales response function graph.
A) plotted on the vertical (Y) axis
B) plotted on the horizontal (S) axis
C) plotted on the vertical (Z) axis
D) the center point
E) plotted on the horizontal (X) axis