Melanie eats 1.5 pounds of cereal each week. which model below best represents the number of pounds of cereal she eats in .5 weeks?

For this case, the first thing we must do is define a variable.
 We have then:
 x: number of weeks
 y: amount of cereal that Melanie eats
 We now write the function that models the problem:
 
 Then, for 5 weeks we have:
 
 
 A model that best represents the number of pounds of cereal she eats is:
 
 For 5 weeks we have:
 

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