SOLUTION: Are the two lines parallel? Why or why not? y=1/2x-4 and 2x+4y=9 2x+4y=9 I am thinking that the answer is no becase they are intersecting? Thanks so much!

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Question 729382: Are the two lines parallel? Why or why not?
y=1/2x-4 and 2x+4y=9
2x+4y=9
I am thinking that the answer is no becase they are intersecting? Thanks so much!

Answer by checkley79(3341)   (Show Source): You can put this solution on YOUR website!
Y=mX+b where m=the slope & b=the y intercept.
y=1/2x-4 this line has a slope=1/2. [red lone]
2x+4y=9
4y=-2x+9
y=-2x/4+9/4
y=-x/2+2.25 this line has a slope=-1/2. green line.
PROOF:


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