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OpenStudy (saifoo.khan):
Sure. Post your problems.
OpenStudy (anonymous):
the revenue for a company is given by the equation R =-.1x ^{2}+95x where x is the number of units sold. how many units must be sold to yield the max revenue? what is the max revenue?
jimthompson5910 (jim_thompson5910):
the max occurs at the vertex
do you know how to find the vertex?
OpenStudy (anonymous):
yes so that is 475
OpenStudy (anonymous):
and then after that I am stuck :/
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jimthompson5910 (jim_thompson5910):
ok so that is the x coordinate of the vertex
jimthompson5910 (jim_thompson5910):
once you have that, you plug it into the given function
jimthompson5910 (jim_thompson5910):
R =-.1x^2+95x
R =-.1(475)^2+95(475)
R = ???
OpenStudy (anonymous):
22,563.5?
jimthompson5910 (jim_thompson5910):
close
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jimthompson5910 (jim_thompson5910):
R = 22562.5 actually
OpenStudy (anonymous):
so that is the maximum units sold? or the maximum revenue?
jimthompson5910 (jim_thompson5910):
so 475 units must be sold to get a max revenue of $22,562.50
jimthompson5910 (jim_thompson5910):
x = # of units
y = revenue
OpenStudy (anonymous):
oh okay thank you for your help
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