SOLUTION: If 6 items cost $900 to produce and 13 items cost $1600 to produce, find the linear cost function.

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Question 316408: If 6 items cost $900 to produce and 13 items cost $1600 to produce, find the linear cost function.
Answer by Fombitz(32388) About Me  (Show Source):
You can put this solution on YOUR website!
Two points are (6,900) and (13,1600)
Find the slope.
m=%28y2-y1%29%2F%28x2-x1%29=%281600-900%29%2F%2813-6%29
m=700%2F7=100
Use the point-slope form of a line with either point,
y-yp=m%28x-xp%29
y-900=100%28x-6%29
y-900=100x-600
highlight%28y=100x%2B300%29