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Mathematics 9 Online
OpenStudy (anonymous):

What is the equation of the line written in general form? https://media.glynlyon.com/g_alg01_2012/3/t20.gif

OpenStudy (anonymous):

\[y=mx+b\] m = slope of line b = y-intercept

OpenStudy (anonymous):

Where does the line intersect the y-axis?

OpenStudy (anonymous):

-2

OpenStudy (anonymous):

Right and what is the slope?

OpenStudy (anonymous):

So..b = -2. What is m?

OpenStudy (anonymous):

um i dont know

OpenStudy (anonymous):

Slope = rise over run

OpenStudy (anonymous):

For every unit this line in particular shifts right, it rises 3 units.

OpenStudy (anonymous):

So the slope would be \[\frac{ rise }{ run } = \frac{ 3 }{ 1 }\]

OpenStudy (anonymous):

Ok

OpenStudy (anonymous):

So what would the equation be?

OpenStudy (anonymous):

i have no clue

OpenStudy (anonymous):

y = mx+b We solved for m and b.

OpenStudy (anonymous):

m is the slope (3) b is the y-intercept (-2)

OpenStudy (anonymous):

3x + y - 2 = 0?

OpenStudy (anonymous):

y = 3x-2

OpenStudy (anonymous):

yea but in general form?

OpenStudy (anonymous):

Move it all to one side. -3x+y+2=0

OpenStudy (anonymous):

ok

OpenStudy (anonymous):

or 3x-y-2=0

OpenStudy (anonymous):

are they both correct?

OpenStudy (anonymous):

Yes.

OpenStudy (anonymous):

Ok thank you so much

OpenStudy (anonymous):

np

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