A company builds computers. It costs $6,700 to build 10 computers and $12,200 to build 20 computers. Which equation models the cost, C(x), as a linear function of the number of computers built, x?

C(x) = 550x −1200

C(x) = 550x + 1200

C(x) = 1200x − 550

C(x) = 1200x + 550

Question

A company builds computers. It costs $6,700 to build 10 computers and $12,200 to build 20 computers. Which equation models the cost, C(x), as a linear function of the number of computers built, x? 

 C(x) = 550x −1200 

 C(x) = 550x + 1200 

 C(x) = 1200x − 550 

 C(x) = 1200x + 550

anonymous · Answer

since you have 4 possible answers, you can just substitue x for 10 and 20, and the one that gives you the correct amount of money (6,700 and 12,200) is the answer.

anonymous · Answer

hoq is that the answer that not even in the choices