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ch4aika [34]
3 years ago
14

The daily cost of hiring a plumber , y , to work x hours on a repair project can be modeled using a linear function. The plumber

charges a fixed cost of $80 plus an additional cost of $45 per hour. The plumber works a maximum of 8 hours per day. For one day of work, what is the range of the function for this situation?
Mathematics
1 answer:
Paladinen [302]3 years ago
3 0

Answer:

The range of the function is 80\leq y\leq 440

Step-by-step explanation:

Consider the provided information.

The plumber charges a fixed cost of $80 plus an additional cost of $45 per hour.

Let plumber works for x hours, then the required linear function will be:

y=45x+80

The plumber works a maximum of 8 hours per day.

That means the minimum value of x is 0 and maximum value of x is 8.

We need to find the range of the function.

Range of the function is the set of y values.

Substitute x=0 in above function,

y=45(0)+80

y=80

Now substitute x=8 in above function.

y=45(8)+80

y=360+80

y=440

Hence, the range of the function is 80\leq y\leq 440

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