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how do u do this

 Oct 25, 2017
 #1
avatar+99384 
+3

If it is parallel then it has to have the same gradient which is 4

So it has to be either 

H      y=4x+19

or

K      y=4x+21

 

Now it goes through (-5,1)

 

For H when x=-5     y= 4*-5 +19 = -20+19=-1 

For K when x=-5     y= 4*-5 +21 = -20+21= +1

 

So the answer is K 

 Oct 25, 2017

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