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OpenStudy (anonymous):
Gives medals !
Write the equation of the line that passes through (–2, 6) and (2, 14) in slope-intercept form.
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OpenStudy (anonymous):
@jigglypuff314 @Michele_Laino
jigglypuff314 (jigglypuff314):
slope intercept form is
\( y=mx+b\)
where
m = slope
and b = y-intercept
jigglypuff314 (jigglypuff314):
so from the given points, we have to first find the slope
do you know how to do that? :)
OpenStudy (anonymous):
No, i don't quiet understand any of this. These are the multiple choice . y = 2x – 2
y = 2x + 10
y = 0.5x + 7
y = 0.5x – 4
jigglypuff314 (jigglypuff314):
slope = (y2 - y1) / (x2 - x1)
when given two points (x1, y1) and (x2, y2)
have you ever seen a rule like this before?
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OpenStudy (anonymous):
Yes I have. hold on I will find the slope.
OpenStudy (anonymous):
The slope is 2.
jigglypuff314 (jigglypuff314):
perfect! :)
then we can plug that into our equation and get
y = 2x + b
so now all we have to do is find "b"
OpenStudy (anonymous):
and B is 10
OpenStudy (anonymous):
So is would be answer B!?
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jigglypuff314 (jigglypuff314):
that's right! :)
OpenStudy (anonymous):
Thanks so much you're a great help!
jigglypuff314 (jigglypuff314):
I'm glad I could help ^_^
jigglypuff314 (jigglypuff314):
sh shh shhh
delete that
you could get banned if the mods found out you got help on a test ;)
OpenStudy (anonymous):
Got it (;
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