The cost of producing goods is partly constant and partly varies as the number of goods produced.If 100 and 50 goods cost 65.00 and 285.00 respectively,find the cost of 200 goods

Answer 1

cost 65.00 and 285.00 EACH or what ???? I think you have a typo because I would expect the total cost to go down as the number goes up but anyway
c = n * k + b
65 = 100 k + b
285 = 50 k + b
------------------------- subtract
- 220 = 50 k
k = -44
then
65 = -4400 + b
b = 4465
so
c = -44 n + 4465
if n = 200
c = -8800 + 4465