which of the following pairs of lines are neither parallel nor perpendicular?
a. x-2y=7 and 3x-6y=13
b. x-2y=7 and 2x+y =9
c. x-2y =7 and 2x-4y =5
d.x-2y=7 and x+2y =7

Question

which of the following pairs of lines are neither parallel nor perpendicular?
a. x-2y=7 and 3x-6y=13
b. x-2y=7 and 2x+y =9
c. x-2y =7 and 2x-4y =5
d.x-2y=7 and x+2y =7

whpalmer4 · Answer

If the lines are parallel, their slopes will be identical.  If the lines are perpendicular, the product of their slopes will be -1.  Rearrange each equation into slope-intercept form: $y=mx+b$ where $m$ is the slope.  You can compare the slopes after doing that.

anonymous · Answer

@whpalmer4 is the answer is b?

whpalmer4 · Answer

What leads you to that conclusion?

whpalmer4 · Answer

What are the slopes you got for the lines x-2y=7 and 2x+y=9?