Two lines are perpendicular if their slopes m1 and m2 have the following relationship:?
a) m1=m2
b) m1= -m2
c) m1 m2= 1
d) m1 m2 = -1
2007-08-06 02:44:16 · 4 answers · asked by Billy_Bob 1 in Science & Mathematics ➔ Mathematics
Lines are perpendicular if:-
m1 x m2 = - 1
OPTION d)
2007-08-06 03:26:52 · answer #1 · answered by Como 7 · 1⤊ 0⤋
Perpendicular slopes...
if one has a gradient of x then the other has a gradient of -1/x
better giving you the knowledge to understand maths for the future than giving you the answer to get you unstuck for a day ^_^
2007-08-06 09:59:55 · answer #2 · answered by dark_massiah 3 · 0⤊ 0⤋
Two slopes are perpendicular if they are negative reciprocals of each other:
m2 = -1/m1
or, multiplying each side by m1:
m1m2=-1
2007-08-06 09:47:48 · answer #3 · answered by miggitymaggz 5 · 0⤊ 1⤋
d is the answer.............
2007-08-06 09:48:21 · answer #4 · answered by anshul 1 · 1⤊ 0⤋