Mathematics
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OpenStudy (anonymous):
need to find the equation of the line containing the given pair of points
(-2,-1) (-6,-7)
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OpenStudy (anonymous):
ok this is how you do it
OpenStudy (anonymous):
you know the slope formula?
OpenStudy (anonymous):
y=mx+b
OpenStudy (anonymous):
that the regular formula
OpenStudy (anonymous):
m=(y-y1)/(x-x1) is the slope
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OpenStudy (anonymous):
o that one
OpenStudy (anonymous):
plug in your value tell me what you get?
OpenStudy (anonymous):
y2-y1/x2-x1
OpenStudy (anonymous):
then you mimic the slope formula
OpenStudy (anonymous):
m=(-1-(-7)/-6-(-2)
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OpenStudy (anonymous):
yes, so what you get?
OpenStudy (anonymous):
6/4 is your slope, positive slope
OpenStudy (anonymous):
you know what to do next?
OpenStudy (anonymous):
um im drawing a blank
OpenStudy (anonymous):
y-y1 = m(x-x1) you bring the x over
then +y1 to the right side
and you get y=y1+m(x-x1)
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OpenStudy (anonymous):
or rather its just F(x)=y1+m(x-x1)
OpenStudy (anonymous):
you get your slope? 6/-4
OpenStudy (anonymous):
sorry its was negative slope
OpenStudy (anonymous):
yes
OpenStudy (anonymous):
F(x)=y1+m(x-x1) is the equation of a line
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OpenStudy (anonymous):
F(x)=y1+(6/-4)(x-x1)
OpenStudy (anonymous):
you plug in either or any of the points
for x1,y1
solve for the equation and there you go eq of a line
OpenStudy (anonymous):
both will get you the same answer
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
eq of a line is very simple just remember the slope formula
bring the denominator over to the m and isolate y itself
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OpenStudy (anonymous):
math is my weak subject
OpenStudy (anonymous):
dont worry its mine also
i am trying to solidify my understanding in math, i am having trouble in calculus
OpenStudy (anonymous):
i can do everything but i cant do math
OpenStudy (anonymous):
hahaha same, lol i was just refreshing up my algebra, i came across this site last few days
OpenStudy (anonymous):
but take your time reading my steps i put up it should be clear
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OpenStudy (anonymous):
yeah me too!! Its a lifesaver. I have another one too
OpenStudy (anonymous):
cool you can add me as fan or if you have other questions i'll be glad to help i'm like doing math at 2 am in the morning lol in the summer
OpenStudy (anonymous):
yeah ive been doing the same thing lately. Im cramming because im leaving for Vegas on Monday and need to get this done
OpenStudy (anonymous):
r u in the US? If so what time zone?
OpenStudy (anonymous):
eastern
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OpenStudy (anonymous):
ok, Im Pacific
OpenStudy (anonymous):
take care i am dead tired i gonna sleep now
OpenStudy (anonymous):
thanks for all ur help and im sure u will hear from me again. Sleep well