2x - 3y -9 = 0
-3y=-2x+9
y=(-2/-3)x+(9/-3)
y=(2/3)x-3
3x + 2y +6 =0
2y=-3x-6
y=(-3/2)x-3
2x - y=0
-y=-2x
y=2x
y =4
already in the reqd. form
2006-12-20 08:35:34
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answer #1
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answered by raj 7
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1. You need to know the slope-intercept formula >>>
>>>> y = mx + b
First: add 9 to both sides because moving to the opposite side means opposite sign:
2x - 3y - 9 + 9
2x - 3y = 9
Second: subtract 2x from both sides:
2x - 2x - 3y = -2x + 9
-3y = -2x + 9
Third: solve for "y" and keeping it on one side > divide everything by -3 >>>
-3y/-3 = -2x/-3 + 9/-3
y = 2x/3 - 3
2. *Same format as number 1 >>>
First: subtract 6 from both sides:
3x + 2y + 6 - 6 = 0 - 6
3x + 2y = - 6
Second: subtract 3x from both sides:
3x - 3x + 2y = -3x - 6
2y = -3x - 6
Third: divide both sides by 2:
2y/2 = -3x/2 - 6/2
y = -3x/2 - 3
3. y = 4 is already in the slope-intercept form
2006-12-21 16:35:21
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answer #2
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answered by ♪♥Annie♥♪ 6
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Do you mean slope-intercept form? y=mx+b
Then solve for y in each of the equations.
2x-9=3y
divide by 3
(2/3)x-3=y
2y=-3x-6
divide by 2
y=(-3/2)x-3
y=2x
y=4
2006-12-20 16:32:41
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answer #3
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answered by Professor Maddie 4
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Slope form is y=mx+b
so first u have to isolate the y
-3y=-2x+9
***y=2/3x-3**** Theres the answer to #1
2y=-3x-6
***y=-3/2-3**** Theres #2
-y=-2x
***y=2x**** Thats #3
and #4 is already in proper form
2006-12-20 16:31:25
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answer #4
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answered by master_furches 2
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2x-3y-9=0
+3y +3y
2x-9=3y
/3 /3
2/3x-3=y
3x+2y+6=0
-3x -3x
2y+6=-3x
-6 -6
2y=-3x-6
/2 /2
y=-3/2x-3
2x-y=0
-2x -2x
-y=-2x
y=2x
y=4
2006-12-20 16:42:48
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answer #5
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answered by skater_lew 1
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slope form is : y = mx +b where m is the slope and b is the y-intercept. Therefore all you need to do is to solve each of the equations for y. Hopefully you can do that. If not, slope form will be complicated for you.
2006-12-20 16:37:02
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answer #6
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answered by Ray 5
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y=2/3x-3, or in standard form, 2x-3y=9
thats the first one.
2006-12-20 17:28:46
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answer #7
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answered by Caroline 7
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no
2006-12-20 16:29:17
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answer #8
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answered by tangsausagees 3
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1⤋