Write an equation relating S to N and then graph your equation

Bill monthly salary is $2100 plus an additional $100 for every copy of history is fun
We set S to represent his total monthly salary and N the total number of copies that he sells
Therefore, 2100 is an independent value and 100 depends on the number of sells
then, the equation is:
[tex]S=2100+100N[/tex]To graph the equation, we need to find the x-intercept and y-intercept:
To find the y-intercept, set x=0:
In this case, x is represented by N, and y is represented by S:
[tex]S(0)=2100+100(0)[/tex][tex]s(0)=2100[/tex]So the graph starts at S=2100, point (S,N) = (2100, 0)
Then,
when he sells one book
N=1
[tex]S=2100+100(1)=2200[/tex]Y = 2200
-When he sells 2 books
N =2
[tex]S=2100+100(2)=2300[/tex]S=2300
- When he sells 3 books
N =3
[tex]S=2100+100(3)=2400[/tex]then, S=2400
- When he sells 4 books
N = 4
[tex]S=2100+100(4)=2500[/tex]Then, S=2500
Therefore, his salary depends on how many books he sells, then change the N value to find all the points of the graps