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4 votes
The equation c = 35h + 60 describes a painters charges , c , for a job that takes h hours. Which statement is correct?

The domain of this function represents the total cost for a job

H is a function of C

The painter charges a $35 service fee in addition to an hourly rate

The painters hourly rate is $35.00

2 Answers

3 votes

For h hours of work, the cost, c, is 35h + 60. 35 is multiplied by h, the number of hours, so 35 is an hourly fee. 60 is a fixed fee.

Let's look at each option.

A. The domain of this function represents the total cost for a job.

The domain is the set of values you input into h, the number of hour, not the cost. A is false.

B. h is a function of c .

False. It's the opposite. The function is written as c being a function of h.

C. The painter charges a $35 service fee in addition to an hourly rate.

We saw earlier that the fixed fee, or service fee, is $60. $35 is the hourly fee since in the function, it is 35 that is multiplied by the number of hours. C. is false.

D. The painters hourly rate is $35.00

True. Since in the function, the number of hours is multiplied by 35, 35 is the hourly rate.

User Omar
by
5.6k points
5 votes

The painters hourly rate is $35.00

no matter how much hours, each hour costs $35, as seen (35h)

hope this helps

User Dcochran
by
5.7k points
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