Question

need help. cant solve this.susan has 5 pounds of flour. she is purchasing mor flour. She can purchase up to 4 more bags each bag = 20 pounds . She cant buy partial bags. ques. The function that models the number of pounds of flour she has is f(b)=20b+5, where b is the number of bags of flour she purchases.What is the partial domain of the function.a. all real numbersb.all intergers btn 1-5c 25, 45, 65,85,105d . all real numbers from 1- 5

Answer 1

Notice that Susan must buy at least 1 bag of flour, then:

$b\ge1.$

Since she can purchase up to 4 more bags, then:

$b\le5.$

Finally, we know that Susan cannot buy partial bags, then b is an integer greater than or equal to zero and smaller than or equal to 5.

Answer: {1,2,3,4,5}.

Option b.