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!

Algebra ->  Rational-functions -> 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!      Log On


   

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) About Me  (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:
+graph%28+300%2C+200%2C+-6%2C+10%2C+-10%2C+10%2C+x%2F2+-4%2C+-x%2F2+%2B2.25%29+