Q: What is the slope of the line that is perpendicular to the line whose equation is 2x + y = 4.

A: The slope of a line perpendicular to the line whose equation is y = 2x + 5 is -1/2.
The slope of that line is 2 (the number 2 takes the place of m in y = mx + b). [ So the slope of the new line that is perpendicular to it is the negative reciprocal of 2. So I change the sign: -2. Then I take the reciprocal of that: (-1/2).
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nami008|Points 334|

Expert answered|samantha55|Points 50|

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Asked 11/20/2013 10:38:44 PM

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