SOLUTION: i need help on this problem it says in each case determine whether the lines are parallel, perpendicular or neither the problem is y= x+7 y=-x+2 can you show me how you gt this

Question 260603: i need help on this problem it says in each case determine whether the lines are parallel, perpendicular or neither the problem is
y= x+7
y=-x+2
can you show me how you gt this answer??? thanks!
Found 2 solutions by Alan3354, richwmiller:
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
i need help on this problem it says in each case determine whether the lines are parallel, perpendicular or neither the problem is y= x+7
y=-x+2
------------
Find the slope of each line.
They're in slope-intercept form, y = mx + b.
y = x+7
m = +1
--------
y = -x+2
m = -1
--------
The slopes are negative inverses, so they're perpendicular.

Answer by richwmiller(17219) (Show Source): You can put this solution on YOUR website!
y=mx+b
Both are in the slope form where m is the slope.
The first slope is 1
The second slope is -1
They must be the same to be parallel
They must produce -1 when they are multiplied to be perpendicular
Neither would be when they are the same line (one equation is a multiple of the other or rearranged)
so which one is it?
RELATED QUESTIONS
in each case determine whether the lines are parallel or perpendicular, or neither.... (answered by Fombitz)
in each case determine whether the lines are parallel, perpendicular or neither..... (answered by checkley77)
In each case determine whether the lines are parallel, perpendicular, or neither.... (answered by richwmiller)
In each case determine whether the lines are parallel, perpendicular, or neither.... (answered by richwmiller)
In each case determine whether the lines are parallel, perpendicular, or neither y = x (answered by checkley77)
In each case determine whether the lines are parallel,perpendicular, or neither. y =... (answered by ewatrrr)
#67 in each case determine whether the lines are parallel, perpendicular or neither.... (answered by tutorcecilia)
In each case determine whether the lines are parallel, perpendicular, or neither.... (answered by mananth)
Determine whether the lines x-5y=15 and -5x-y+2=0 are parallel, perpendicular, or... (answered by tommyt3rd,MathTherapy)