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# M28-01

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Math Expert
Joined: 02 Sep 2009
Posts: 58410

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16 Sep 2014, 01:28
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Difficulty:

5% (low)

Question Stats:

83% (00:38) correct 17% (00:48) wrong based on 146 sessions

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Which of the following lines is parallel to line $$x = 6 - 3y$$?

A. $$3x=1-3y$$
B. $$y=\frac{x}{3}+2$$
C. $$y=3x+2$$
D. $$y=-\frac{x}{3}+4$$
E. $$y=-3x+4$$

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Math Expert
Joined: 02 Sep 2009
Posts: 58410

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16 Sep 2014, 01:28
Official Solution:

Which of the following lines is parallel to line $$x = 6 - 3y$$?

A. $$3x=1-3y$$
B. $$y=\frac{x}{3}+2$$
C. $$y=3x+2$$
D. $$y=-\frac{x}{3}+4$$
E. $$y=-3x+4$$

Parallel lines have the same slope. Rewrite $$x = 6 - 3y$$ as $$y=-\frac{1}{3}x+2$$. So, we have that the slope of the line is $$-\frac{1}{3}$$ (coefficient of $$x$$). Only the line from option D has the same slope.

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Joined: 11 Mar 2018
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09 Oct 2018, 09:47
what level would you say this? 500? 600?
Math Expert
Joined: 02 Sep 2009
Posts: 58410

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09 Oct 2018, 09:50
wslap wrote:
what level would you say this? 500? 600?

It's 600-700 Level Question.
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Re: M28-01   [#permalink] 09 Oct 2018, 09:50
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# M28-01

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