What is the slope of the line whose equation is
–48 = 2x − 8y?
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jimthompson5910 (jim_thompson5910):
We need to isolate y
–48 = 2x − 8y
–48-2x = -8y
-8y = -2x - 48
y = (-2x - 48)/(-8)
y = (-2x)/(-8) - 48/(-8)
y = (1/4)x + 6
The last equation above is in the form y = mx+b where m = 1/4 is the slope
jimthompson5910 (jim_thompson5910):
b = 6 is the y-intercept
so that graph crosses the y axis at (0,6)
OpenStudy (anonymous):
?
jimthompson5910 (jim_thompson5910):
where are you stuck?
OpenStudy (anonymous):
are u sure its 1/4
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OpenStudy (anonymous):
i got 7/4
OpenStudy (anonymous):
@jim_thompson5910
jimthompson5910 (jim_thompson5910):
how did you get 7/4 ?
OpenStudy (anonymous):
tbh idk
jimthompson5910 (jim_thompson5910):
do you see how I isolated y?
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OpenStudy (anonymous):
i have 2 mor for u is tht ok
jimthompson5910 (jim_thompson5910):
we're not done with this one though.
jimthompson5910 (jim_thompson5910):
do you see how I isolated y? or no?
OpenStudy (anonymous):
yes
jimthompson5910 (jim_thompson5910):
so what would be the slope for something like 3y = 10x + 7
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OpenStudy (anonymous):
explain
plz
jimthompson5910 (jim_thompson5910):
again the idea is to isolate y
so what do we do to accomplish this?