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2 votes
X+3y=9. graph using slope and y-intercept

2 Answers

3 votes
Well, in order to first determine the slope or y-intercept, you must put change the equation to this format: y=mx+b.
m=slope and b=y-intercept
I
in order to do that, you must change this equation.

x+3y=9

-x -x
----------
3y=9-x

Then, rewrite it as:

3y=-x+9
_______
3 3

simplify to

y=-x/3 +9



User MartinH
by
6.8k points
2 votes
In order to graph it easily, we write the given equation into its slope intercept form which is expressed as:

y = mx + b

where m is the slope and b is the y-intercept.

X+3y=9
(3y = 9 - X)1/3
y = (-1/3)X + 3
User Paulo Rosa
by
6.7k points
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