Mathematics
11 Online
OpenStudy (anonymous):
help me please
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OpenStudy (anonymous):
@dan815
OpenStudy (anonymous):
@welshfella
OpenStudy (anonymous):
@jewlzme17
OpenStudy (welshfella):
first find the slope m by difference of y values / difference of x va;lues
= -6-(-7)
-------
-8 - (-5)
OpenStudy (anonymous):
makes sence
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OpenStudy (welshfella):
then plug this into
y - y1 = m(x - x1) where (x1,y1) is a point on the line
OpenStudy (anonymous):
so is my answer b
OpenStudy (welshfella):
No take a closer look
OpenStudy (anonymous):
my bad its d
OpenStudy (welshfella):
look at the value of x1 and y1 in the equation and check them against the given points
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OpenStudy (anonymous):
im so confused now
OpenStudy (welshfella):
the 5 and the 7 some be in same equation
and so must the 6 and the 8
OpenStudy (welshfella):
* 7 must be
OpenStudy (anonymous):
so its a
OpenStudy (anonymous):
becuase its a negative
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OpenStudy (welshfella):
if y1 = -7
y - y1 = y - (-7) = y + 7
OpenStudy (anonymous):
ok imma stop guessing and go with c lol
OpenStudy (welshfella):
lol c is the only one left
OpenStudy (welshfella):
y - y1 = m(x - x1)
m = -1/3 , y1 = -7 amd x1 = -5 so equation is
y + 7 = -1/3 ( x + 5)
OpenStudy (anonymous):
lol pfft i didnt say e lol im joking thnc for the help mate i got one more question after this
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OpenStudy (welshfella):
and for the point (-6.-8)
replace the 7 and 5 by 8 and 6
OpenStudy (welshfella):
well i gtg go its nearly 1 am in the UK
OpenStudy (welshfella):
i gotta get some rest..
OpenStudy (anonymous):
damn its 7:46 here in the us
OpenStudy (anonymous):
goodnight mate