Question 1103525: the linear function y=1.25x represent the cost y ( in dollars) of x bottles of orange juice. each customer can buy a max of 5 bottles
What is the domain of the function??
Answer by Theo(13342)   (Show Source):
You can put this solution on YOUR website! the function is y = 1.25x
each customer can buy a max of 5 bottles, therefore the value of x can go from 0 to 5.
the domain is therefore x is an integer from 0 to 5.
when x = 0, the cost is 0.
when x = 5, the cost is 6.25.
the range of the function is therefore y = the set {1.25, 2.50, 3.75, 5.00, 6.25}
no other values can be in the range because the domain is only integers and integers generate those values only.
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