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OpenStudy (anonymous):
find an equation for the line with points (-5,5) & (5,-4)
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OpenStudy (addonexus):
This is undefined. -9/0 is not possible. if it were 0/-9 it would just be 0.
OpenStudy (anonymous):
first get the slope.. m= y2 - y1 / x2 - x1
OpenStudy (anonymous):
i dont have an option for underfined
OpenStudy (anonymous):
so -4 - 5/ 5+ 5
OpenStudy (anonymous):
so your m is -9/10..
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OpenStudy (addonexus):
oh wow my mistake
OpenStudy (anonymous):
so y=-9/10 and how do i find the b
OpenStudy (anonymous):
then the slope intercept form. y- y1 = m (x- x1)
y-5 = -9/10 (x+ 5)
OpenStudy (anonymous):
i use another method for the equation of the line. b's kinda annoying for me hahaha
OpenStudy (anonymous):
oh ok
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OpenStudy (anonymous):
no its your slope. its not the y
OpenStudy (anonymous):
i know that but isnt that the beginning of the equation?
OpenStudy (anonymous):
multiply both sides by 10.. so its 10y-50 = -9x-45
OpenStudy (anonymous):
yes it is. but depends on you on how you deal with this equation of the line. i usually use this method.
OpenStudy (anonymous):
y=-9/10x+1/2
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OpenStudy (anonymous):
10y+ 9x - 5 = 0 thats it
OpenStudy (anonymous):
yes! that can be
OpenStudy (anonymous):
that could also be
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