Question

The median household income
in the United States was $56,277 in 2015 and$57,617
in 2016. Write a linear equation giving the median
household income y in terms of the year x. Then use
the equation to predict the median household income

1. thongdat2
The linear equation for the median household income in x years after 2015 is given by:
y = 1340x + 56277.
Using this equation, the estimate for the median household income in 2021 is of $64,317. ### What is a linear function? A linear function is modeled by: y = mx + b In which: • m is the slope, which is the rate of change, that is, by how much y changes when x changes by 1. • b is the y-intercept, which is the value of y when x = 0, and can also be interpreted as the initial value of the function. We consider 2015 as the initial year, hence: • The y-intercept is of 56,277. • The slope is of 57,617 – 56,277 = 1340. Hence the equation is given by: y = 1340x + 56277. 2021 is 6 years after 2015, hence the estimate is given by: y = 1340 x 6 + 56277 =$64,317.
More can be learned about linear equations at https://brainly.com/question/24808124
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