The coordinates below represent two linear equations.
How many solutions does this system of equations have?
Line 1
x y
–3 5
0 4
Line 2
x y
0 4
6 2
A.
0
B.
exactly 1
C.
exactly 2
D.
infinitely many
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OpenStudy (anonymous):
@Nnesha
Nnesha (nnesha):
so did you try to solve it what you got ??
OpenStudy (anonymous):
was i suppose to subtract this divide?
Nnesha (nnesha):
okay so they gave you two table you should have two equations
find slope and y -intercept of both table first :)
OpenStudy (anonymous):
was i suppose to subtract this divide?\[\frac{ y2 }{ x2}-\frac{ xy1 }{ x1 }\]
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OpenStudy (anonymous):
sorry thats suppose ti be a y1
Nnesha (nnesha):
yesh first y2 -y1 and x2 -x1 and then divide
Nnesha (nnesha):
that's fine i can understand latex :P
OpenStudy (anonymous):
ya i got
OpenStudy (anonymous):
\[\frac{ 1 }{ 3 } and \frac{ 2 }{ 6 }\]
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OpenStudy (anonymous):
am i right?
Nnesha (nnesha):
first one is right
OpenStudy (anonymous):
i just don't know how to put them on the graph
Nnesha (nnesha):
second one try that again
and reduce 2/6
OpenStudy (anonymous):
\[\frac{ -2 }{ 6 } sorr\]
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OpenStudy (anonymous):
sorry*
Nnesha (nnesha):
yesh that's right so reduce that
OpenStudy (anonymous):
\[-\frac{ 1 }{ 3 }\]
Nnesha (nnesha):
yes right
OpenStudy (anonymous):
now what i do
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Nnesha (nnesha):
wait what was your slope for first table ??
OpenStudy (anonymous):
umm
Nnesha (nnesha):
for first one what you got -1/3 or 1/3 ??
OpenStudy (anonymous):
sorry
Nnesha (nnesha):
what is that that's a different table ??:O
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OpenStudy (anonymous):
umm -1/3
OpenStudy (anonymous):
haha sorry AGAIN
OpenStudy (anonymous):
Line 1
x y
-3 5
0 4
Line 2
x y
0 4
6 2
OpenStudy (anonymous):
@Nnesha
Nnesha (nnesha):
yesh so both table have same slope -1/3 -1/3
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Nnesha (nnesha):
both have same slope mean both equation are parallel
and that's mean our answer should be ??
OpenStudy (anonymous):
\[\frac{ -2 }{ }\]
Nnesha (nnesha):
what is that ??
OpenStudy (anonymous):
|dw:1420692583160:dw|
OpenStudy (anonymous):
@Nnesha
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OpenStudy (anonymous):
can i just have the answer
Nnesha (nnesha):
nope sorry
not at alll :(
OpenStudy (anonymous):
lol ok
Nnesha (nnesha):
you just need just one definition and then you done
OpenStudy (anonymous):
what defintion
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Nnesha (nnesha):
if both lines are parallel then answer should be what ??
if 2 equations have same slope then lines are parallel
OpenStudy (anonymous):
Inconsistent
OpenStudy (anonymous):
meaning no solution
OpenStudy (anonymous):
xD
Nnesha (nnesha):
|dw:1420692414739:dw|
parallel mean never touch with each ohter
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OpenStudy (anonymous):
yesh
OpenStudy (anonymous):
so Inconsistent
OpenStudy (anonymous):
meaning no solution A
Nnesha (nnesha):
so yes not soulution
Nnesha (nnesha):
solution**
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