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:
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:
So the graph starts at S=2100, point (S,N) = (2100, 0)
Then,
when he sells one book
N=1
Y = 2200
-When he sells 2 books
N =2
S=2300
- When he sells 3 books
N =3
then, S=2400
- When he sells 4 books
N = 4
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