A textbook company keeps track of its daily cost for printing whole textbooks to different schools but can only print up to 500 books a day. The daily cost (C) to print x number of textbooks is given by C(x) = 3.50x + 1200.

Using the function, determine one possible daily cost by evaluating the function for any input of your choice.
For what value of x does C(x) = 1900?
Interpret the statement C(20) = 1270.
Interpret the statement C(w) = p.
Explain whether C(40.5) = 1341.75 is correct and possible given the context of this problem.

Question

A textbook company keeps track of its daily cost for printing whole textbooks to different schools but can only print up to 500 books a day. The daily cost (C) to print x number of textbooks is given by C(x) = 3.50x + 1200. 

Using the function, determine one possible daily cost by evaluating the function for any input of your choice.
For what value of x does C(x) = 1900?
Interpret the statement C(20) = 1270.
Interpret the statement C(w) = p.
Explain whether C(40.5) = 1341.75 is correct and possible given the context of this problem.

doc.brown · Answer

Do you know what C(x)=3.50x+1200 means?

doc.brown · Answer

It means: The $C$ost of printing books per day (depending on $x$ many books) is = $$3.50$ (for each $1x$ book) + $$1200$.
So if you print 0 books you still have to pay $1200 per day just for having a factory.

anonymous · Answer

Okay...

doc.brown · Answer

On the first one:
For what value of x does C(x) = 1900?
You know two things that are equal to C(x).

$C(x) = 3.50x + 1200$ and $C(x) = 1900$

doc.brown · Answer

so$$3.50x+1200=1900$$