In a factory, a certain machine needs 10 min to warm up. it takes 15 min for the machine to run a cycle. the machine can operate for as long as 6 h per day including warm up time. Draw a graph showing the total time the machine operates during 1 day as a function of the number of cycles it runs.
-What domain and range are reasonable?
-Is the function a linear function?

Respuesta :

Answer:

[tex]y =\frac{1}{6} + 0.25x[/tex]

[tex]0 \leq x \leq23.33[/tex]


[tex]0 \leq y \leq 6[/tex]

Step-by-step explanation:

The machine always takes 10 minutes (or 1/6 hours) to warm up and performs each cycle in 15 minutes, or 0.25 hours.


The maximum amount of daily hours that the machine can work is 6 hours.


Therefore we can represent this situation by means of an equation of the form:


[tex]y =\frac{1}{6} + 0.25x[/tex]

Where


y = daily amount of hours the machine works.


x = number of daily cycles performed.


This equation is a linear function.  Because it has the form y = ax where a is a real number

The graph of this equation is shown in the attached image, where the gray shaded area represents the domain of the function.


The domain of the function is:


[tex]x\geq 0[/tex] (because you can not perform less than zero cycles a day)


[tex]x \leq23.33[/tex]. Because the machine can not exceed 6 hours per day, then it can not do more than 23.33 cycles.


So:


[tex]0 \leq x \leq23.33[/tex]


The range of the function is:


[tex]y \geq 0[/tex] (because you can not work less than 0 hours a day)


[tex]y \leq 6[/tex] (because the machine can not work more than 6 hours a day)


So


[tex]0 \leq y \leq 6[/tex]

Ver imagen carlosego