Mathematics
7 Online
OpenStudy (anonymous):
Please Help! Fan + Medal!
Posted Below!
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OpenStudy (anonymous):
@jim_thompson5910 Mind Helping With This One ? :)
jimthompson5910 (jim_thompson5910):
first off, what's the slope of 3x - 2y = 5
OpenStudy (anonymous):
Give Me One Second
jimthompson5910 (jim_thompson5910):
ok
OpenStudy (anonymous):
The Slope Is 3/2
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OpenStudy (anonymous):
\[\frac{ 3 }{ 2 }\]
jimthompson5910 (jim_thompson5910):
now flip the fraction and flip the sign to get -2/3
jimthompson5910 (jim_thompson5910):
so the slope of the final answer will be -2/3
jimthompson5910 (jim_thompson5910):
which answer choices have a slope of -2/3?
OpenStudy (anonymous):
C. And D.
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OpenStudy (anonymous):
I Believe It's D?
jimthompson5910 (jim_thompson5910):
what makes you say D?
OpenStudy (anonymous):
There Has To Be A Y-Intercept Right ? -1/3 Is The Y-Int
jimthompson5910 (jim_thompson5910):
plug in x = -2 and y = 1 into choice C
what do you get
OpenStudy (arhin):
after getting the slope of the perpendicular line
use \[slope=\frac{ y-y _{1} }{ x-x _{1} }\]
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OpenStudy (anonymous):
No Solution Jim ?
jimthompson5910 (jim_thompson5910):
correct, you get a false statement, so that's why C is eliminated
OpenStudy (anonymous):
So The Only Left Over Possibility Is D . Thanks Jim!!!!!!
jimthompson5910 (jim_thompson5910):
yep you got it, yw
OpenStudy (arhin):
where \[x _{1}\] and \[y _{1}\] are (-2,1) respectively