Mathematics
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OpenStudy (wasiqss):
find among all possible straight lines through point(1,2), a line that forms a triangle of minimum area with the positive parts of the cartesian axes
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OpenStudy (wasiqss):
i want minimum area
OpenStudy (eyust707):
what class is this for?
OpenStudy (wasiqss):
caclulus, application of maxima , minima
OpenStudy (wasiqss):
zarkon guide plz
OpenStudy (zarkon):
where are you stuck?
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OpenStudy (wasiqss):
like i cant understand the whole question
OpenStudy (zarkon):
can you give me a general equation of a line that passes through the point (1,2)?
OpenStudy (wasiqss):
y-2=m(x-1)
OpenStudy (zarkon):
write is as y=m(x-1)+2
what the the x and y intercepts
OpenStudy (zarkon):
in terms of m
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OpenStudy (wasiqss):
y intercept 2-m
OpenStudy (zarkon):
ok
OpenStudy (wasiqss):
i guess we have to find line with least gradient ,m i rite ?
OpenStudy (zarkon):
you need to minimize \[A=\frac{1}{2}base\times height\]
OpenStudy (zarkon):
the length of the base is the x intercept and the height of the triangle is the y-intercept
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OpenStudy (wasiqss):
ok
OpenStudy (wasiqss):
w8 how base is x intercept and height y intercept
OpenStudy (zarkon):
|dw:1326352620941:dw|
OpenStudy (wasiqss):
ohhh yes now i understood, bt wut is next step
OpenStudy (zarkon):
you need the x-intercept
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OpenStudy (wasiqss):
ok, we can do that by putting y=0 , the line equation