Martin started selling snacks in the nearby school. In one day he spends, Php 200 for the rent and Php 25 for each snack item he prepares.
A. His expense in a single day can be expressed as the function C(x) where the x is the number of items and C(x) is his daily expenses in pesos. What is the function of C(x)
B. What will be his daily expenses if he prepares 5, 8, 12, 15, 20 , 25, 27, 30 snack items?
C. Plot the values in (b) as points in the cartesian plane and connect the points.

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Answers

2016-07-24T14:32:08+08:00
Plug-in the number of  items in x:

1)  c(x) = 25 x + 200
     c(100) = 25 (100) + 200
     c(100) = 2,500 + 200
     c (100) = Php2,700   ⇒  expenses for 100 items

2)  c (150) = 25 (150) + 100
     c (150) = 3,750 + 200
     c (150) = Php 3,950   ⇒  expenses for 150 items
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