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?
ANYBODY PLEASE HELP ME????
@ganeshie8 @jim_thompson5910
what do you have so far
i have Part A: The x-intercepts represent the price of the pens and the maximum value represents that maximum profit the company makes.
the x-intercepts are not the price of the pens the y coordinate of each point does that job
the x-intercepts are where y = 0 y is the profit so the x-intercepts represent when the profit is $0
but in the problem it says "depending on the price of pens x"
anything below the x-intercept yields negative profit you spend more than you make here
x is the price of pens, yes
y is the profit and it depends on the price x
oh ok
so i dont get where the intervals are increasing and decreasing?
when x increases, when is y increasing? or put another way... as you go from left to right, when are you going uphill?
when x is at 0 and y is at 0 also?
where else
(1, 60)?
when does it stop going uphill
at the maximum point?
which is where
(3, 120)
so it starts increasing at (1, 60) and it starts decreasing at (3,120)
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
btw it doesn't make sense to have x be negative because you can't have a negative price
yeah thats true
ok great i get it now i was a bit confused b4 thank you
you're welcome
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