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Mathematics 14 Online
OpenStudy (anonymous):

A school puts on a play. The play costs $1,200 in expenses. The students charge $4.00 for tickets. There will be one performance of the play in an auditorium that seats 500 people. What is the domain of the function that shows the profit as a function of the number of tickets sold?

OpenStudy (anonymous):

The domain is all real numbers from negative 1,200 to positive 2,000 The domain is all integers from negative 1,200 to positive 2,000. The domain is the integers from 0 to 500. The domain is all real numbers from 0 to 500.

OpenStudy (anonymous):

@M0j0jojo Can you help me please?

OpenStudy (anonymous):

let x be the number of tickets sold. So since the auditorium can only seat 500 people. thats our limiting factor for x. only 500 tickets can be sold. and if they sold 500 tickets then the max profit they can make is $2000. but they spent $1200 in expenses that so basically the function of this problem is p(x)=4x-1200

OpenStudy (anonymous):

Also when it says Domain, it refers to the x values. When it says range it refers to the y values.

OpenStudy (anonymous):

so what is the minimum value of x and the max value of x?

OpenStudy (anonymous):

so its the last one right ? @M0j0jojo

OpenStudy (anonymous):

yes

OpenStudy (anonymous):

okay @M0j0jojo can you help me on another one?

OpenStudy (anonymous):

okay

OpenStudy (anonymous):

A science experiment begins with a metal at -100° Celsius. The following function describes the temperature change per minute: f(x) = 89x - 100°. How will the graph of this function change if the metal is at 25° at the start of the experiment?

OpenStudy (anonymous):

The line will shift vertically up by 125°. The line will shift vertically up by 25°. The line will shift vertically down by 125°. The line will shift vertically down by 25°.

OpenStudy (anonymous):

so at the start the temperature is at -100 degrees Celsius. and now the question is asking what if at the start the temperature of the experiment was at 25 degrees celsius instead of -100. How would the graph look?

OpenStudy (anonymous):

what is the y intercept of the original equation?

OpenStudy (anonymous):

would it be c?

OpenStudy (anonymous):

@M0j0jojo

OpenStudy (anonymous):

why do you say that?

OpenStudy (anonymous):

i meant b

OpenStudy (anonymous):

if the temperature of the original is at -100 at 0 minutes. how much did the graph shift if at the starting time it was at 25 degrees.

OpenStudy (anonymous):

|dw:1413738382474:dw|

OpenStudy (anonymous):

125?

OpenStudy (anonymous):

yup

OpenStudy (anonymous):

so the answer should be the first 1

OpenStudy (anonymous):

yes, the graph shift vertically by 125 from the original.

OpenStudy (anonymous):

thanks so much

OpenStudy (anonymous):

no problem

OpenStudy (anonymous):

i need help in two more graph can you help @M0j0jojo

OpenStudy (anonymous):

can you post it as a new question. close this question

OpenStudy (anonymous):

alright

OpenStudy (anonymous):

Just for people who look up this question in the future. The answer to the first question asked is the third choice, The domain is the integers from 0 to 500. NOT all real numbers

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