Scatterplots: foundations

Nightly News Viewers

The graph shows information on the average number of Americans who viewed the nightly news from

1980

2010

. A line of best fit is shown on the scatterplot, where

t

represents years since

1980

and

V

represents the average number of nightly news viewers, in millions, for that year. According to the model, which of the following is the best interpretation of the slope of this line?

(Choice A)
From $1980$ ‍ to $2010$ ‍, the number of Americans who viewed the nightly news decreased by about $1$ ‍ million viewers.
(Choice B)
From $1980$ ‍ to $2010$ ‍, the number of Americans who viewed the nightly news decreased by about $1$ ‍ million viewers per year.
(Choice C)
From $1980$ ‍ to $2010$ ‍, the number of Americans who viewed the nightly news decreased by about $0.2$ ‍ million viewers per year.
(Choice D)
From $1980$ ‍ to $2010$ ‍, the number of Americans who viewed the nightly news decreased by about $2 %$ ‍ each year.

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Digital SAT Math

Course: Digital SAT Math > Unit 3

Problem