SOLUTION: Show how to determine if the following pairs of lines are parallel without graphing: 2x-4y=16 3x=6y+18

Algebra ->  Graphs -> SOLUTION: Show how to determine if the following pairs of lines are parallel without graphing: 2x-4y=16 3x=6y+18      Log On


   

Question 294123: Show how to determine if the following pairs of lines are parallel without graphing: 2x-4y=16
3x=6y+18
Answer by scott8148(6628) About Me  (Show Source):
You can put this solution on YOUR website!
get x and y on the same side of the equation

if the ratio of the x and y coefficients is the same in both equations, then the slopes of the lines are the same
___ which means the lines are parallel