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OpenStudy (anonymous):
OpenStudy (anonymous):
i know it is small sorry. you can zoom in by holding down Ctrl ans scrolling in or out.
OpenStudy (anonymous):
x+y=5
2y-10=2x
these are the two equations you have
OpenStudy (anonymous):
yup
OpenStudy (anonymous):
b
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OpenStudy (anonymous):
lets get the 2nd equation to standard form
OpenStudy (anonymous):
many solutions
OpenStudy (anonymous):
B is no solutions
OpenStudy (anonymous):
well graphing form for both would be
y=5-x and
2y-10=2x -> 2y=2x+10 -> y=x+5
OpenStudy (anonymous):
I cant really see it
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OpenStudy (anonymous):
than you can's be sure you are right.
OpenStudy (anonymous):
can't*
OpenStudy (anonymous):
wait b/c i did the wrong equation
OpenStudy (anonymous):
oh wait thats 2y=10-2x
OpenStudy (anonymous):
so the 2nd equations is y=5-x as well
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OpenStudy (anonymous):
is it 2y=10-2x
OpenStudy (anonymous):
meaning the two equations are equal
OpenStudy (anonymous):
um, ok.
OpenStudy (anonymous):
and if the two equations are equal they will have the same solutions
OpenStudy (anonymous):
so it is A?
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OpenStudy (anonymous):
yes
OpenStudy (anonymous):
many soultions is the answer
OpenStudy (anonymous):
thanks!
OpenStudy (anonymous):
no prob
OpenStudy (anonymous):
and hey try out this app called mathway
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OpenStudy (anonymous):
can you help me with 1 more?
OpenStudy (anonymous):
you're welcome
OpenStudy (anonymous):
oh sure
OpenStudy (anonymous):
sure
OpenStudy (anonymous):
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OpenStudy (anonymous):
sorry, this one is smaller, it is
y + x + 0
y + 7x + 12
OpenStudy (anonymous):
(-2,-2)
OpenStudy (anonymous):
looking at the graphs, it cant be b because the 2nd equation has a y-intercept of 12 not 0 and it cant be c since the 2nd equation has a positive slope
OpenStudy (anonymous):
c&d sorry
OpenStudy (anonymous):
so you only have one option left
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OpenStudy (anonymous):
a
OpenStudy (anonymous):
yep
OpenStudy (anonymous):
thanks so much!
OpenStudy (anonymous):
no problem
OpenStudy (anonymous):
how is it A
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