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Median weekly earnings for women with some college for an associate degree.
1980.......$231
2013.............$657
Using today's dollars, the data in the bar graph can be described by the mathematical model
W = 13n + 231,
Where W represents median weekly earnings n years after 1980.
Does the formula underestimate or overestimate the median weekly earnings in 2013? By how much?

Respuesta :

Using the given linear function, the formula underestimates the median weekly earnings in 2013 by $3.

What is the linear function for the estimate?

The function that estimates the median weekly earnings n years after 1980 is given by:

W = 13n + 231.

2013 is 2013-1980 = 33 years after 2000, hence the estimate is given by:

W = 13 x 33 + 231 = 660.

Since 657 < 660, the formula underestimates the median weekly earnings in 2013 by $3.

More can be learned about linear functions at https://brainly.com/question/24808124

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