SOLUTION: Suppose the quantity of heat y (measured in calories) that it takes to change ice at 0 degree celsius to water x degree celsius is a linear function of x for 0 < x < 100. For 1 gra

Algebra ->  Coordinate Systems and Linear Equations  -> Linear Equations and Systems Word Problems -> SOLUTION: Suppose the quantity of heat y (measured in calories) that it takes to change ice at 0 degree celsius to water x degree celsius is a linear function of x for 0 < x < 100. For 1 gra      Log On


   

Question 936742: Suppose the quantity of heat y (measured in calories) that it takes to change ice at 0 degree celsius to water x degree celsius is a linear function of x for 0 < x < 100. For 1 gram of ice, y = 100 when x= 20 and y= 120 when x=40.
a. Express y as a linear function of x
b. How many calories does it take just to melt the ice?
Answer by oscargut(2103) About Me  (Show Source):
You can put this solution on YOUR website!
Answer:
a) y = x + 80
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