The percent of the U.S. population with Internet service can be described by , where x is the number of years past 1995. What interpretation could be given to the y-intercept of this equation?
A) In 1995, 13.13% more of the U.S. population had Internet access than in the previous year.
B) In 1995, the number of people in the U.S. with Internet access increased at a rate of 13.13% per year.
C) At present, the number of people in the U.S. with Internet access is increasing at a rate of 13.13% per year.
D) In 1995, 13.13% of the U.S. population had Internet access.
E) At present, 13.13% of the U.S. population has Internet access.

Question

The percent of the U.S. population with Internet service can be described by  , where x is the number of years past 1995. What interpretation could be given to the y-intercept of this equation? ​
A) In 1995, 13.13% more of the U.S. population had Internet access than in the previous year. 
B) In 1995, the number of people in the U.S. with Internet access increased at a rate of 13.13% per year. 
C) At present, the number of people in the U.S. with Internet access is increasing at a rate of 13.13% per year. 
D) In 1995, 13.13% of the U.S. population had Internet access. 
E) At present, 13.13% of the U.S. population has Internet access.

Quizplus · Accepted Answer

The y-intercept of the equation represents the value of y (percent of the U.S. population with Internet service) when x (years past 1995) is equal to 0, which means in the year 1995. Therefore, the y-intercept represents the percent of the U.S. population with Internet access in 1995, which is 13.13%. So, option D is the correct interpretation of the y-intercept.

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