SOLUTION: Is the line parallel, perpendicular or neither??
y = x + 7
y = -x + 2
How do I figure this out?? Thanks for helping!
Algebra ->
Graphs
-> SOLUTION: Is the line parallel, perpendicular or neither??
y = x + 7
y = -x + 2
How do I figure this out?? Thanks for helping!
Log On
Question 190932: Is the line parallel, perpendicular or neither??
y = x + 7
y = -x + 2
How do I figure this out?? Thanks for helping! Answer by stanbon(75887) (Show Source):
You can put this solution on YOUR website! Is the line parallel, perpendicular or neither??
y = x + 7
y = -x + 2
How do I figure this out??
----------
Both are in the form y = mx +b where b is the slope.
The slope of the 1st Eq. is "1".
The slope of the 2nd Eq. is "-1".
-----------------------------------
The slopes are not the same so the lines are not parallel.
------------------------------------------
The product of the slopes is 1*-1 = -1 so the lines are perpendicular.
===========================================================
Cheers,
Stan H.
(