Question

Item 25

The linear function m=45−7.5b represents the amount m (in dollars) of money that you have after buying b books. Select all of the values that are in the domain of the function.

0

1

2

3

4

5

6

7

8

9

10





















































































Item 25
The linear function m=45−7.5b represents the amount m (in dollars) of money that you have after buying b books. Select all of the values that are in the domain of the function.

0

1

2

3

4

5

6

7

8

9

10

Answer 1

The domain of the linear function is the set of all non-negative integers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.

Step-by-step explanation:

The domain of a function is the set of all possible input values, or in this case, the values of b that we can substitute into the linear function to get a valid output. Since we are talking about the number of books bought, we can assume that it cannot be negative (we can't buy a negative number of books). So the domain is all non-negative integers: 0, 1, 2, 3, 4, 5, 6, 7, 8, 9, 10.