SOLUTION: a. m = 1/3, m = 3/9 - Parallel
b. m = -5/3 , m = -2 - Neither parallel nor perpendicular
c. m = -3 , m = -1/3 - Perpendicular
d. m = -2/5 , m = -4/19 - Parallel
e. m = -3/4
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Question 895165: a. m = 1/3, m = 3/9 - Parallel
b. m = -5/3 , m = -2 - Neither parallel nor perpendicular
c. m = -3 , m = -1/3 - Perpendicular
d. m = -2/5 , m = -4/19 - Parallel
e. m = -3/4 , m = -4/19 - Parallel
f. m = -3/4 , m= -2/3 - parallel
g. m = -7/8 , m = 8/7 - Perpendicular
h. m = 5/14 , m = -140/42 - perpendicular
i. m = -7/8 , m = -3/5 - parallel
j. m = -2/3 , m = 3/2 - perpendicular
k. m = -8/5 , m = -16/24 - parallel
l. m = 1/21 , m = 6/20 - perpendicular
are all of those correct? Please i need some answers ASAP!
Found 2 solutions by Fombitz, Alan3354:
Answer by Fombitz(32388) (Show Source): You can put this solution on YOUR website!
Parallel lines have identical slopes.
.
.
.
Perpendicular lines have slopes that are negative reciprocals.
.
.
.
a.Correct
b.Correct
c.Incorrect
d.Incorrect
e.Incorrect
f.Incorrect
g.Correct
h.Incorrect
i.Incorrect
j.Correct
k.Incorrect
l.Incorrect
Answer by Alan3354(69443) (Show Source): You can put this solution on YOUR website!
If the slopes (m) are equal, they're parallel.
----
If they're negative inverses, they're perpendicular.
ie, if m1 = -1/m2
--> m1*m2 = -1
------------------
o/w, they're neither.
===================
a. m = 1/3, m = 3/9 - Parallel equal --> parallel.
b. m = -5/3 , m = -2 - Neither parallel nor perpendicular
c. m = -3 , m = -1/3 - Perpendicular Neither. It's the inverse but not negative inverse.
d. m = -2/5 , m = -4/19 - Parallel ?? -2/5 is not -4/19
e. m = -3/4 , m = -4/19 - Parallel ?? -3/4 is not -4/19
f. m = -3/4 , m= -2/3 - parallel ***** Are they equal?
g. m = -7/8 , m = 8/7 - Perpendicular Correct
h. m = 5/14 , m = -140/42 - perpendicular *** No
i. m = -7/8 , m = -3/5 - parallel *** Are they equal?
j. m = -2/3 , m = 3/2 - perpendicular Correct
k. m = -8/5 , m = -16/24 - parallel Are they equal?
l. m = 1/21 , m = 6/20 - perpendicular ***** Is the product -1 ?
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