SOLUTION: The cost of making a dress is partly constant and partly varies with the amount of time it takes to make the dress if the dress takes 3 hours to make, it costs 2700naira. If it tak

Question 844047: The cost of making a dress is partly constant and partly varies with the amount of time it takes to make the dress if the dress takes 3 hours to make, it costs 2700naira. If it takes 5 hours to make the dress, it costs 3100naira. Find the cost if it takes one and a half hours to make the dress.
Answer by josmiceli(19441) (Show Source): You can put this solution on YOUR website!
Plot cost, on the vertical axis
Plot time in hours, on the horizontal axis
Use the general point-slope formula

-----------------------
If ,

naira
------------------------
Check the equation:

( 5, 3100 )

OK
You can check ( 2700, 3 )

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