SOLUTION: You start a pet-sitting service. You spend 35$ on advertising & you plan to charge 5$ a day to watch each pet. a) Write an equation to relate your daily income 'y' to the number

Algebra ->  Coordinate Systems and Linear Equations -> SOLUTION: You start a pet-sitting service. You spend 35$ on advertising & you plan to charge 5$ a day to watch each pet. a) Write an equation to relate your daily income 'y' to the number       Log On


   

Question 395472: You start a pet-sitting service. You spend 35$ on advertising & you plan to charge 5$ a day to watch each pet.
a) Write an equation to relate your daily income 'y' to the number of 'x' you watch.
b) Graph the equation
measurements:
y= 20 , 40 , 60 , 80
x= 2, 4, 6, 8
Please, help meee.
Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Whatever you make, you are still going to have to
spend the $35 for advertising, so that is a loss.
given:
x is the number of pets you watch
5 is the dollars/day that you charge clients
y is your income
-----------------
y+=+-35+%2B+5x
the measurements are:
y+=+20
20+=+-35+%2B+5x
5x+=+55
x+=+11
----------
y+=+40
40+=+-35+%2B+5x
5x+=+75
x+=+15
---------
So far you have the points (11,20) and (15,40)
which you can plot. You should be able to finish this.