Ask your own question, for FREE!
Mathematics 19 Online
OpenStudy (anonymous):

CAN SOMEONE HELP ME WITH A QUESTION PLEASE???? The graph below shows a company's profit f(x), in dollars, depending on the price of pens x, in dollars, being sold by the company: Part A: What do the x-intercepts and maximum value of the graph represent? What are the intervals where the function is increasing and decreasing, and what do they represent about the sale and profit?

OpenStudy (anonymous):

OpenStudy (anonymous):

ANYBODY PLEASE HELP ME????

OpenStudy (anonymous):

@ganeshie8 @jim_thompson5910

jimthompson5910 (jim_thompson5910):

what do you have so far

OpenStudy (anonymous):

i have Part A: The x-intercepts represent the price of the pens and the maximum value represents that maximum profit the company makes.

jimthompson5910 (jim_thompson5910):

the x-intercepts are not the price of the pens the y coordinate of each point does that job

jimthompson5910 (jim_thompson5910):

the x-intercepts are where y = 0 y is the profit so the x-intercepts represent when the profit is $0

OpenStudy (anonymous):

but in the problem it says "depending on the price of pens x"

jimthompson5910 (jim_thompson5910):

anything below the x-intercept yields negative profit you spend more than you make here

jimthompson5910 (jim_thompson5910):

x is the price of pens, yes

jimthompson5910 (jim_thompson5910):

y is the profit and it depends on the price x

OpenStudy (anonymous):

oh ok

OpenStudy (anonymous):

so i dont get where the intervals are increasing and decreasing?

jimthompson5910 (jim_thompson5910):

when x increases, when is y increasing? or put another way... as you go from left to right, when are you going uphill?

OpenStudy (anonymous):

when x is at 0 and y is at 0 also?

jimthompson5910 (jim_thompson5910):

where else

OpenStudy (anonymous):

(1, 60)?

jimthompson5910 (jim_thompson5910):

when does it stop going uphill

OpenStudy (anonymous):

at the maximum point?

jimthompson5910 (jim_thompson5910):

which is where

OpenStudy (anonymous):

(3, 120)

OpenStudy (anonymous):

so it starts increasing at (1, 60) and it starts decreasing at (3,120)

jimthompson5910 (jim_thompson5910):

so the profit function is increasing when x = 0 and it does so until x gets to x = 3 afterward, the profit starts to decrease

jimthompson5910 (jim_thompson5910):

btw it doesn't make sense to have x be negative because you can't have a negative price

OpenStudy (anonymous):

yeah thats true

OpenStudy (anonymous):

ok great i get it now i was a bit confused b4 thank you

jimthompson5910 (jim_thompson5910):

you're welcome

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!