Question

which pair of slopes represent perpendicular lines?
a. 1/2, -1/2
b. 1/3, 3
c. -1/4, 4
d. -1/5,-5

Best answer and follow :) thank u

Answer 1

if product of slopes = -1 ...it means lines r perpendicular

Answer 2

how would i get the product?

Answer 3

like
if m1 and m2 are slopes of two lines then if
\[m_1 \times m_2 = -1\]

Answer 4

im lost /:

Answer 5

like see
\[\frac{ 1 }{ 2 } \times -\frac{ 1 }{ 2 } = -\frac{ 1 }{ 4 }\]

Answer 6

so its not perpendicular...bcoz product isn't equal to -1

Answer 7

likewise check other options..... if the product is -1 ...then the lines are perpendicular

Answer 8

how would i do 1/3 x 3?

Answer 9

\[\frac{ 1 }{ 3 } \times 3 = 1\]

Answer 10

so -1/4 x 4 would be -1?

Answer 11

yup :))

Answer 12

which means tht option is ur answer:))

Answer 13

yes thank you so much once again for helping!!

Answer 14

yw :))