Perpendicular Lines
Which of these lines are perpendicular? Explain.
line p:
y=1/5x + 2
line q:
y=5x-1/2
line r:
y=1/2x+3
How would you approach this kind of problem, I understand how to get perpendicular lines, but I don't really know where to begin....
2007-04-21 06:02:15 · 3 answers · asked by Anonymous in Science & Mathematics ➔ Mathematics
The product of the gradients of perpendicular lines is -1,
i.e. if one line has gradient m, any perpendicular line has gradient -1/m.
Note:
It is very simple. And do not think that it is very confusing or else you will never understand. None of these lines are perpendicular.
2007-04-21 06:57:30 · answer #1 · answered by Alein 2 · 0⤊ 0⤋
If you have two lines written as
y=mx+n
y=m´x+n´
If m = m´they are paralel
if m=-1/m´they are perpendicular.
In your question there are no paralel not perpendicular lines
2007-04-21 06:38:18 · answer #2 · answered by santmann2002 7 · 0⤊ 0⤋
make a graphic and see.......
2007-04-21 06:05:44 · answer #3 · answered by Anonymous · 0⤊ 0⤋