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OpenStudy (anonymous):
OpenStudy (anonymous):
@Hero can u help?
hero (hero):
For these, I usually choose two convenient points on the line then find the slope and the equation of the line. Start with these two points:
(0,40) and (10,20)
OpenStudy (anonymous):
OK so what do i do with thoes? theres a formula i have to use right?
hero (hero):
y = mx + b
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hero (hero):
Find m and b
OpenStudy (anonymous):
How do i find m an b
hero (hero):
Plug in the points
OpenStudy (anonymous):
IM sorry im really confused
hero (hero):
20 = 10m + b
40 = b
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hero (hero):
20 = 10m + 40
OpenStudy (anonymous):
OK now what do i now with this
hero (hero):
Hang on
OpenStudy (anonymous):
im really sorry
hero (hero):
Well, we know b = 40, so its between choices B and D
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hero (hero):
Now I have to find whatever mistake I am making that causes m to equal -2 rather than -1/2
OpenStudy (anonymous):
ok so how would we figure out the next part
OpenStudy (anonymous):
ok what would my equation be
OpenStudy (anonymous):
thats what i get to
hero (hero):
Where did that come from?
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OpenStudy (anonymous):
mathway but the timer went out now i have to work on a diffrent quation