SOLUTION: it costs $120 to manufacture 50 pens in one day and $320 to produce 150 pens in one day. find a linear equation that shows the relationship between cost and the number of pens prod
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Question 1076921: it costs $120 to manufacture 50 pens in one day and $320 to produce 150 pens in one day. find a linear equation that shows the relationship between cost and the number of pens produced Answer by Boreal(15235) (Show Source):
You can put this solution on YOUR website! (120,50) and (320,150)
treat as linear
slope is 100/200=1/2
use point-slope where y-y1=m(x-x1), m slope, (x1,y1) point
y-50=(1/2)(x-120)
y=(1/2)x-10
above 20 pens the cost is 50 cents a pen
