Which of the following pairs of equations represent parallel lines?
A. y = 2x + 4 and y = -1/2x + 4
B. y = 3x - 14 and y = 3x + 2
C. y = 7x - 5 and y = -7x + 5
D. y = 4x + 2 and y = 1/4x - 2

Question

Which of the following pairs of equations represent parallel lines? 
A. y = 2x + 4 and y = -1/2x + 4
B. y = 3x - 14 and y = 3x + 2
C.  y = 7x - 5 and y = -7x + 5
D. y = 4x + 2 and y = 1/4x - 2

anonymous · Answer

@jojo4eva @Preetha

anonymous · Answer

Parallel lines have the same slope..so which ones have the same slope?

anonymous · Answer

All of them are in the form of:

y = mx + b

Where M is slope.

anonymous · Answer

So which one's have the same 'm'?

anonymous · Answer

A?

anonymous · Answer

y = 2x + 4 and y = -1/2x + 4
      ^ Slope                ^ Slope

The slope of the first one is 2, and the slope of the 2nd one is -1/2.

2 and -1/2 are NOT the same, so they are not parallel lines.

anonymous · Answer

Its C

anonymous · Answer

No..that's close but notice that the first one has 7, and the other one has -7.

anonymous · Answer

Its B

anonymous · Answer

@iGreen.

anonymous · Answer

Yep, B is correct, both of them have a slope of 3.

jojo4eva · Answer

the answer is B

anonymous · Answer

THANK YOU @iGreen. and you are late @jojo4eva

jojo4eva · Answer

i kno my internet was acting up but sorry im good now

anonymous · Answer

No problem.

anonymous · Answer

Okay so could you help me with a few more ? @jojo4eva

jojo4eva · Answer

ya can you givr me a moment tho?? ill be right back

anonymous · Answer

ok

jojo4eva · Answer

ok @tiffany__ im ready when you are