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torisob [31]
3 years ago
15

Nate works at least 4 hours but not more than 9 hours. He earns $12.40 per hour. The function f(t) = 12.4t represents the amount

of money he earns for working t hours.
Choose the practical domain and the practical range for this situation.


There are exactly 2 correct answers.


(Hint: The answers need to make sense for the situation!)

Question 10 options:



The practical domain is all real numbers from 4 to 9, inclusive.



The practical domain is all real numbers.



HELP!!!!! The practical range is all real numbers from 49.6 to 111.6, inclusive.



The practical range is all real numbers from 4 to 9, inclusive.
Mathematics
1 answer:
Mashcka [7]3 years ago
7 0

The practical domain is all real numbers from 4 to 9, inclusive.

The practical range is all real numbers from 49.6 to 111.6, inclusive.

These are the correct options.

Explanation:

Given function is f(t) = 12.4t

Let us assume that Nate works 'x' hours so 4<x<9

And multiplying the hours with his earnings we get the range.

4*12.40=49.6 and 9*12.40=111.6. Let the amount earned be represented by y

Hence, domain can be represented as 4<x<9 and range can be represented as  49.6 < y < 111.6

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