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# slope 1

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Manager
Joined: 16 Apr 2009
Posts: 213
Schools: Ross

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14 Jul 2009, 14:06
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A line with a slope of -4 will be parallel to a line with a slope of _______________

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Senior Manager
Joined: 25 Mar 2009
Posts: 290

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14 Jul 2009, 14:11
-4.

That's the only way they can be parallel. Slope = Rise/Run = (change in Y)/(change in X). If they didn't increase/decrease the same amount on the Y axis for a given change in the X axis, then the lines would cross. The slope must be the same.
Manager
Joined: 16 Apr 2009
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15 Jul 2009, 18:55

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This is not a quality discussion. It has been retired.

If you would like to discuss this question please re-post it in the respective forum. Thank you!

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Re: slope 1   [#permalink] 15 Jul 2009, 18:55
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# slope 1

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