For this case, the first thing we must do is define variables.
We have then:
w: number of windows installed.
For the payment of Javier this week we have the following expression:
14w + 56
This function is a linear function.
The cutoff point with the y-axis represents the extra money for installing doors.
The slope of the line for this case represents the payment for each installed window.
Answer:
the coefficient of the expression represents:
The pay for each window installed