Mathematics
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OpenStudy (anonymous):
For the feasibility region shown below (will attach in a sec!!), find the maximum value of the function P=2x+3y.
*** there are no answer choices...
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OpenStudy (anonymous):
OpenStudy (anonymous):
hi!!! i have like no idea how to do this :(
jimthompson5910 (jim_thompson5910):
this is a linear programming problem
jimthompson5910 (jim_thompson5910):
so first you need to identify the corner points
jimthompson5910 (jim_thompson5910):
what are the corner points
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OpenStudy (anonymous):
(6,5)
jimthompson5910 (jim_thompson5910):
that's one, what else
OpenStudy (anonymous):
(0,8)
jimthompson5910 (jim_thompson5910):
good, any others?
OpenStudy (anonymous):
(8,0)
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jimthompson5910 (jim_thompson5910):
and finally...???
OpenStudy (anonymous):
and (0,0)
jimthompson5910 (jim_thompson5910):
the min and the max will result if you plug in one of those points into P = 2x+3y
jimthompson5910 (jim_thompson5910):
so plug in each point into P = 2x+3y
OpenStudy (anonymous):
will it be the same outcome?? or must i do all of them??
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OpenStudy (anonymous):
(6,5)
P=2(6)+3(5)
=12+15
=27
is that one right??
jimthompson5910 (jim_thompson5910):
good, and the last one is?
OpenStudy (anonymous):
(8,0)
P=2(8)+3(0)
=16+0
=16
jimthompson5910 (jim_thompson5910):
plug in (0,0)
P = 2x+3y
P = 2(0)+3(0)
P = 0 + 0
P = 0
plug in (0,8)
P = 2x+3y
P = 2(0)+3(8)
P = 0 + 24
P = 24
OpenStudy (anonymous):
what do i do now?? were those right? :D
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jimthompson5910 (jim_thompson5910):
So we have the following
(0,0) ---> P = 0
(0,8) ---> P = 24
(6,5) ---> P = 27
(8,0) ---> P = 16
which point yields the largest value of P?
OpenStudy (anonymous):
largest point is 27???
jimthompson5910 (jim_thompson5910):
so the max of P = 2x+3y is P = 27 given the restrictions in the graph
OpenStudy (anonymous):
oops i meant (6,5) ??? haha is (6,5) the largest point??
jimthompson5910 (jim_thompson5910):
that's the point that yields the maximum
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jimthompson5910 (jim_thompson5910):
the actual max is P = 27
OpenStudy (anonymous):
so my answer is: P=27 ???
jimthompson5910 (jim_thompson5910):
yes
OpenStudy (anonymous):
okay!! thanks :D
jimthompson5910 (jim_thompson5910):
np