Using the given linear function, it is found that the estimate for worlwide car sales in 2015 is of 78 million.
What is a linear function?
A linear function is modeled by:
[tex]y = mx + b[/tex]
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
In a graph, x is the horizontal axis and y is the vertical axis.
In the estimated graph, we have that when the horizontal axis is of 2015, the vertical axis is at 78 million, which is the estimate for worldwide car sales in 2015.
More can be learned about linear functions at https://brainly.com/question/24808124
