SOLUTION: Can someone help me out on this problem? I put it through last night, but I typed the past part wrong. I need to determine which two equations represent parallel lines.:

Question 57277: Can someone help me out on this problem? I put it through last night, but I typed the past part wrong.
I need to determine which two equations represent parallel lines.:
(a) y = 6x -5, (b) y = 6x + 5 (c) y = 6x + 2 or (d) y = - 1/6 x - 5
Thank you,
Ashley
Found 2 solutions by stanbon, funmath:
Answer by stanbon(75887) (Show Source): You can put this solution on YOUR website!
a, b, and c all have a slope of 6, so they are parallel lines.
Cheers,
Stan H.
Answer by funmath(2933) (Show Source): You can put this solution on YOUR website!
I need to determine which two equations represent parallel lines.:
(a) y = 6x -5, (b) y = 6x + 5 (c) y = 6x + 2 or (d) y = - 1/6 x - 5
I sent you an email about this one. But I'll explain it again.
Parallel lines have equla slopes.
We can tell the slope of a line that is in slope intercept form by looking at the coefficient of x.
Slope intercept form is, where m=slope and (0,b)=y-intercept.
In (a)
the slope, m=6.
In (b)
the slope, m=6
In (c)
the slope, m=6
In (d)
the slope, m=-1/6
:
I was confused because you have three parallel lines instead of two. a, b, and c are all parallel, the only one that isn't is (d).
Take a look at their graphs, can you see what I mean?

Happy Calculating, Ashley!!!
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