. 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?
A. C(x) = 550x -1200
B. C(x) = 550x + 1200
C. C(x) = 1200x - 550
D. 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? 
A. C(x) = 550x -1200
B. C(x) = 550x + 1200
C. C(x) = 1200x - 550
D. C(x) = 1200x + 550

anonymous · Answer

i will tell you the slope is
12200-6700 divided by 20-10
5500/10
m = 550

use the formula
y - y1 = m (x - x1) 
to find your line

x1 = 10
y1 = 6700

anonymous · Answer

thank you

anonymous · Answer

which is the answer? It is B right?