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which is an equation of aline perpendicular to the line whose equation is y= -1/2x + 5 ?

a) y= 2x - 1    b) y= -2x - 1    c) y= 1/2x - 1    d) y= -1/2x - 1

 Mar 22, 2015

Best Answer 

 #1
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Two perpendicular lines have negative reciprocal slopes

So...the slope of the given line = -1/2

And the negative reciprocal of -1/2  = 2

Can you spot the answer ???

 

  

 Mar 22, 2015
 #1
avatar+130517 
+5
Best Answer

Two perpendicular lines have negative reciprocal slopes

So...the slope of the given line = -1/2

And the negative reciprocal of -1/2  = 2

Can you spot the answer ???

 

  

CPhill Mar 22, 2015

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