20. Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.

y = –12x + 7
36x + 3y = 21
(1 point)

PLEASE HELP!

Question

20.   Tell whether the lines for each pair of equations are parallel, perpendicular, or neither.

y = –12x + 7
36x + 3y = 21
 (1 point)

PLEASE HELP!

radar · Answer

If the slope of the 2nd equation is -12 then they are parallel, if it is 1/12 then it is perpendicular.

anonymous · Answer

Okay, Thank you @radar

radar · Answer

Just to satisfy my own curiosity...
36x + 3y = 21.
3y=-36x + 21
y = -12x + 7    Well well the lines are coincident.  They are the same line!  Since parallel lines never meet, then I guess the best answer is "neither"

radar · Answer

@kierstanLuvsKyle check the post above.