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OpenStudy (anonymous):
Help!!
A Line having a slope of 3/4 passes through the point (-8,4). Write the equation of this line in slope-intercept form.
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OpenStudy (anonymous):
See here you have slope and one point also so use this formula:
\[y = y_1 = m(x - x_1)\]
OpenStudy (anonymous):
ok
OpenStudy (anonymous):
\[y - y_1 =m(x - x_1)\]
OpenStudy (anonymous):
wait i don't get it :(
OpenStudy (anonymous):
Here: \(y_1 = 4\) and \(x_1 = -8\)
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OpenStudy (anonymous):
ok
OpenStudy (anonymous):
This is one point slope form:
\[y - (-8) = \frac{3}{4}(x - 4)\]
OpenStudy (anonymous):
As slope (m) = 3/4 so I have just plugged in the values in place of x1, y1 and m..
OpenStudy (anonymous):
ok :)
OpenStudy (anonymous):
So just solve that equation..
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OpenStudy (anonymous):
omg i'm so lost :(( lol
OpenStudy (anonymous):
\[y + 8 = \frac{3}{4}(x - 4) \implies 4(y + 8) = 3(x - 4) \implies 4y + 32 = 3x - 12\]
\[4y = 3x - 12 - 32 \implies 4y = 3x - 44\]
Now divide by 4 and you will have you answer..
OpenStudy (anonymous):
how did you get 4?
OpenStudy (anonymous):
Where??
OpenStudy (anonymous):
y+8=3/4(x-4) to 4(y+8) ? like how did you get it.
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OpenStudy (anonymous):
Multiply by 4 both the sides...
OpenStudy (anonymous):
thank you :)))
OpenStudy (anonymous):
You are welcome dear..
OpenStudy (anonymous):
:)
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