Mathematics
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OpenStudy (anonymous):
(6,-1) 8x-7y=5
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OpenStudy (anonymous):
hmm?
OpenStudy (lgbasallote):
equation of the line?
OpenStudy (anonymous):
write an equation of the line containing the given point and parallel to the given line
OpenStudy (anonymous):
parralel means the slope of the new line must be the same
OpenStudy (anonymous):
find the slope of the origional line first
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OpenStudy (anonymous):
all i know is you subtract 8x from both sides, then divide both sides by -7 to isolate y.
I get 8/7x + b, but I never get the "b" part right
OpenStudy (anonymous):
ok but any line with the slope 8/7 with any b will be parralel to the origional
OpenStudy (anonymous):
by the way the origional b is -5/7
OpenStudy (anonymous):
oh ok and the new line neeeds to contain that point 6,-1?
OpenStudy (anonymous):
so ur m is 8/7 take a point (6,-1) which gives you an x and a y and then\[-1=\frac{8}{7}(6)+b\]
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OpenStudy (anonymous):
solve for b
OpenStudy (anonymous):
all lines have form y=mx+b
OpenStudy (anonymous):
If you know y m and x you can find b no probs
OpenStudy (anonymous):
48/7?
OpenStudy (anonymous):
\[(-1)-\frac{48}{7}=b\]
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OpenStudy (anonymous):
-55/7
OpenStudy (anonymous):
ah! THANK YOOOOUUU
OpenStudy (anonymous):
sometimes answers dont always look pretty
OpenStudy (anonymous):
Do you get the method I explained though?
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OpenStudy (anonymous):
i guess not bc i have another similar question And i still got the answer wrong
OpenStudy (anonymous):
nope, got it!
OpenStudy (anonymous):
Ok so let me take my time to explain
OpenStudy (anonymous):
great :P
OpenStudy (anonymous):
medal my answer :)
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OpenStudy (anonymous):
If you need any other help just mention me if im on or send me an email liamspeirs1@hotmail.com
OpenStudy (anonymous):
thank you again
OpenStudy (anonymous):
your welcome