According to the U.S. Bureau of the Census, the relation between the average annual earnings of males and females with various levels of educational attainment can be modeled by the function F = 0.521M + 6.368 , where M and F represent the average annual earnings (in thousands of dollars) of males and females, respectively. Choose the correct interpretation of the slope.
A)For each $1 increase in the males' earnings, the females' earning increases by $0.521.
B)For each $1000 increase in the males' earnings, the females' earning increases by $52.1.
C)For each $1000 increase in the males' earnings, the females' earning decreases by $52.1.
D)For each $1 increase in the males' earnings, the females' earning decreases by $0.521.
E)For each $100 increase in the males' earnings, the females' earning increases by $5.21.

Question

According to the U.S. Bureau of the Census, the relation between the average annual earnings of males and females with various levels of educational attainment can be modeled by the function F = 0.521M + 6.368 , where M and F represent the average annual earnings (in thousands of dollars) of males and females, respectively. Choose the correct interpretation of the slope.​ ​
A)For each $1 increase in the males' earnings, the females' earning increases by $0.521.
B)For each $1000 increase in the males' earnings, the females' earning increases by $52.1.
C)For each $1000 increase in the males' earnings, the females' earning decreases by $52.1.
D)For each $1 increase in the males' earnings, the females' earning decreases by $0.521.
E)For each $100 increase in the males' earnings, the females' earning increases by $5.21.

Quizplus · Accepted Answer

The slope in the given function (0.521) represents the rate of change of females' earnings with respect to males' earnings. Therefore, for each $1 increase in the males' earnings, the females' earning increases by $0.521.